Configuration for ungrouped wake up signal and group wake up signal

ABSTRACT

The present disclosure relates to transmitting and receiving a group wake-up signal (WUS) in conjunction with an ungrouped WUS. A base station may group one or more UEs in a UE group, while other UEs may not be assigned to a UE group. The configuration of WUS resources and WUS sequences for grouped UEs and other UEs is a challenge. The base station may transmit, to one or more UEs in the UE group, a resource allocation of a group WUS resource within a set of WUS resources associated with a paging occasion that is assigned to the one or more UEs in the UE group. A UE, after receiving the resource allocation, may determine a location of the group WUS resource within the set of WUS resources. The UE may monitor for a group WUS at the determined location in the resource allocation of the group WUS resource.

CROSS REFERENCE TO RELATED APPLICATION(S)

This application is a divisional application of U.S. Non-provisionalapplication Ser. No. 17/039,123, entitled “CONFIGURATION FOR UNGROUPEDWAKE UP SIGNAL AND GROUP WAKE UP SIGNAL” and filed on Sep. 30, 2020,which claims the benefit of U.S. Provisional Application Ser. No.62/911,163, entitled “CONFIGURATION FOR UNGROUPED WAKE UP SIGNAL ANDGROUPED WAKE UP SIGNAL” and filed on Oct. 4, 2019, and U.S. ProvisionalApplication Ser. No. 62/931,770, entitled “CONFIGURATION FOR UNGROUPEDWAKE UP SIGNAL AND GROUPED WAKE UP SIGNAL” and filed on Nov. 6, 2019,all of which are expressly incorporated by reference herein in theirentirety.

BACKGROUND Technical Field

The present disclosure relates generally to communication systems, andmore particularly, to a configuration for grouped and ungrouped wake upsignals.

Introduction

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources. Examples of suchmultiple-access technologies include code division multiple access(CDMA) systems, time division multiple access (TDMA) systems, frequencydivision multiple access (FDMA) systems, orthogonal frequency divisionmultiple access (OFDMA) systems, single-carrier frequency divisionmultiple access (SC-FDMA) systems, and time division synchronous codedivision multiple access (TD-SCDMA) systems.

These multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent wireless devices to communicate on a municipal, national,regional, and even global level. An example telecommunication standardis 5G New Radio (NR). 5G NR is part of a continuous mobile broadbandevolution promulgated by Third Generation Partnership Project (3GPP) tomeet new requirements associated with latency, reliability, security,scalability (e.g., with Internet of Things (IoT)), and otherrequirements. 5G NR includes services associated with enhanced mobilebroadband (eMBB), massive machine type communications (mMTC), andultra-reliable low latency communications (URLLC). Some aspects of 5G NRmay be based on the 4G Long Term Evolution (LTE) standard. There existsa need for further improvements in 5G NR technology. These improvementsmay also be applicable to other multi-access technologies and thetelecommunication standards that employ these technologies.

SUMMARY

The following presents a simplified summary of one or more aspects inorder to provide a basic understanding of such aspects. This summary isnot an extensive overview of all contemplated aspects, and is intendedto neither identify key or critical elements of all aspects nordelineate the scope of any or all aspects. Its sole purpose is topresent some concepts of one or more aspects in a simplified form as aprelude to the more detailed description that is presented later.

A UE may be configured for discontinuous reception (DRX). The UE maymonitor for a page from the base station in order to determine whetherto wake up to receiving communication from the base station. In someinstances, a wake-up signal (WUS) can be sent from a base station to aUE in order to provide notification of an upcoming paging occasion (PO).When sending and receiving multiple WUSs and POs, it can be beneficialto determine a strategy and/or conserve the amount of WUSs and POs thatare sent throughout the wireless system. By doing so, the overall powerconsumption of the wireless system can be improved.

UEs may be configured to support a group WUS where a base station cangroup a plurality of UEs into one or more UE groups and transmit a groupWUS to a particular group of UEs. The base station may be able to assigna UE group identification or a group WUS sequence to the UE group.Grouping the UEs allows the base station to transmit a WUS to a specificset of UEs rather than transmitting the WUS to all UEs being served bythe base station. Grouping the UEs allows the base station to determineand transmit a WUS identifying which UEs within the UE group shouldwake-up for a paging occasion (PO). Prior to receiving the transmission,the UEs can listen for the WUS. After receiving the WUS, the identifiedUEs can wake-up before receiving the corresponding PO. Each WUS may havea duration, which may be limited by a maximum allowed WUS duration.Additionally, a gap period may be provided between the end of the WUSand the PO.

The base station can also determine the total number of different UEgroups, wherein each UE is assigned to a particular group. Within eachgroup, some UEs may be capable of being assigned to a UE group, whileother UEs may not be capable of being assigned to a UE group. In someaspects, each legacy or ungrouped UE can receive the same WUS, e.g., alegacy WUS, and each grouped UE can receive a WUS that targets theparticular group or sub-group for that UE, e.g., a group-specific WUS.The legacy WUS can identify which legacy or ungrouped UEs should wake-upfor an ungrouped PO. Likewise, the group-specific WUS can identify whichgrouped UE should wake-up for a group-specific PO.

In an aspect of the disclosure, a method, a computer-readable medium,and an apparatus are provided for wireless communication at a UE formonitoring for a group WUS. The apparatus receives, from a base station,a resource allocation of a group wake-up signal (WUS) resource assignedto one or more UEs in a UE group. The apparatus determines a location ofthe group WUS resource within a set of WUS resources associated with apaging occasion. The apparatus monitors for a group WUS at thedetermined location in the resource allocation of the group WUSresource.

In another aspect of the disclosure, a method, computer-readable medium,and an apparatus are provided for wireless communication at a UE formonitoring for a group WUS while in extended discontinuous reception(eDRX) mode. The apparatus receives, from a base station, an eDRXconfiguration configuring the UE for eDRX mode. The apparatus determinesa number of consecutive POs associated with a group WUS. The apparatusmonitors for the group WUS, while in eDRX mode based on the determinednumber of consecutive POs.

In another aspect of the disclosure, a method, computer-readable medium,and an apparatus are provided for wireless communication at a UE formonitoring for a WUS at a WUS resource. The apparatus receives, from abase station, a resource allocation for a group wake-up signal (WUS)associated with one or more UEs in a UE group, wherein the UE is withinthe UE group. The apparatus monitors for the WUS at a first WUS resourceof M WUS resources for a first PO. The apparatus monitors for the WUS ata second WUS resource of M WUS resources associated with a second PO.

In another aspect of the disclosure, a method, computer-readable medium,and an apparatus are provided for wireless communication at a basestation for transmitting a WUS. The apparatus groups one or more UEs ina UE group. The apparatus transmits, to one or more UEs in the UE group,an allocation of resources assigned to the one or more UEs in the UEgroup, the allocation of resources comprising a group WUS resourcewithin a set of WUS resources associated with a PO.

In another aspect of the disclosure, a method, computer-readable medium,and an apparatus are provided for wireless communication at a basestation for transmitting an eDRX configuration to a UE. The apparatusconfigures an eDRX configuration, the eDRX configuration includes anumber of consecutive POs associated with a group WUS. The apparatustransmits, to at least one UE, the eDRX configuration to configure theat least one UE for eDRX mode.

In another aspect of the disclosure, a method, computer-readable medium,and an apparatus are provided for wireless communication at a basestation for transmitting a group WUS to one or more UEs in a UE group.The apparatus configures an allocation of resources for a group WUSassociated with one or more UEs in a UE group, wherein a first WUSresource of M WUS resources is associated with a first PO and a secondWUS resource of M WUS resources is associated with a second PO. Theapparatus transmits the group WUS to the one or more UEs in the UEgroup.

To the accomplishment of the foregoing and related ends, the one or moreaspects comprise the features hereinafter fully described andparticularly pointed out in the claims. The following description andthe annexed drawings set forth in detail certain illustrative featuresof the one or more aspects. These features are indicative, however, ofbut a few of the various ways in which the principles of various aspectsmay be employed, and this description is intended to include all suchaspects and their equivalents.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network.

FIGS. 2A, 2B, 2C, and 2D are diagrams illustrating examples of a first5G/NR frame, DL channels within a 5G/NR subframe, a second 5G/NR frame,and UL channels within a 5G/NR subframe, respectively.

FIG. 3 is a diagram illustrating an example of a base station and userequipment (UE) in an access network.

FIG. 4 illustrates examples of patterns of WUS resources.

FIG. 5 illustrates additional examples of patterns of WUS resources.

FIG. 6 illustrates an example of WUS mapping in eDRX mode.

FIG. 7 is a diagram illustrating transmissions between a base stationand a UE.

FIG. 8 is a diagram illustrating transmissions between a base stationand a UE.

FIG. 9 is a diagram illustrating transmissions between a base stationand a UE.

FIG. 10 is a flowchart of a method of wireless communication.

FIG. 11 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 12 is a flowchart of a method of wireless communication.

FIG. 13 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 14 is a flowchart of a method of wireless communication.

FIG. 15 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 16 is a flowchart of a method of wireless communication.

FIG. 17 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 18 is a flowchart of a method of wireless communication.

FIG. 19 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 20 is a flowchart of a method of wireless communication.

FIG. 21 is a diagram illustrating an example of a hardwareimplementation for an example apparatus.

FIG. 22 illustrates an example of UE groups alternating the monitoredWUS resource.

FIG. 23 illustrates examples of enabling of UE group alternating amongWUS resources.

DETAILED DESCRIPTION

The detailed description set forth below in connection with the appendeddrawings is intended as a description of various configurations and isnot intended to represent the only configurations in which the conceptsdescribed herein may be practiced. The detailed description includesspecific details for the purpose of providing a thorough understandingof various concepts. However, it will be apparent to those skilled inthe art that these concepts may be practiced without these specificdetails. In some instances, well known structures and components areshown in block diagram form in order to avoid obscuring such concepts.

Several aspects of telecommunication systems will now be presented withreference to various apparatus and methods. These apparatus and methodswill be described in the following detailed description and illustratedin the accompanying drawings by various blocks, components, circuits,processes, algorithms, etc. (collectively referred to as “elements”).These elements may be implemented using electronic hardware, computersoftware, or any combination thereof. Whether such elements areimplemented as hardware or software depends upon the particularapplication and design constraints imposed on the overall system.

By way of example, an element, or any portion of an element, or anycombination of elements may be implemented as a “processing system” thatincludes one or more processors. Examples of processors includemicroprocessors, microcontrollers, graphics processing units (GPUs),central processing units (CPUs), application processors, digital signalprocessors (DSPs), reduced instruction set computing (RISC) processors,systems on a chip (SoC), baseband processors, field programmable gatearrays (FPGAs), programmable logic devices (PLDs), state machines, gatedlogic, discrete hardware circuits, and other suitable hardwareconfigured to perform the various functionality described throughoutthis disclosure. One or more processors in the processing system mayexecute software. Software shall be construed broadly to meaninstructions, instruction sets, code, code segments, program code,programs, subprograms, software components, applications, softwareapplications, software packages, routines, subroutines, objects,executables, threads of execution, procedures, functions, etc., whetherreferred to as software, firmware, middleware, microcode, hardwaredescription language, or otherwise.

Accordingly, in one or more example embodiments, the functions describedmay be implemented in hardware, software, or any combination thereof. Ifimplemented in software, the functions may be stored on or encoded asone or more instructions or code on a computer-readable medium.Computer-readable media includes computer storage media. Storage mediamay be any available media that can be accessed by a computer. By way ofexample, and not limitation, such computer-readable media can comprise arandom-access memory (RAM), a read-only memory (ROM), an electricallyerasable programmable ROM (EEPROM), optical disk storage, magnetic diskstorage, other magnetic storage devices, combinations of theaforementioned types of computer-readable media, or any other mediumthat can be used to store computer executable code in the form ofinstructions or data structures that can be accessed by a computer.

FIG. 1 is a diagram illustrating an example of a wireless communicationssystem and an access network 100. The wireless communications system(also referred to as a wireless wide area network (WWAN)) includes basestations 102, UEs 104, an Evolved Packet Core (EPC) 160, and anothercore network 190 (e.g., a 5G Core (5GC)). The base stations 102 mayinclude macrocells (high power cellular base station) and/or small cells(low power cellular base station). The macrocells include base stations.The small cells include femtocells, picocells, and microcells.

The base stations 102 configured for 4G LTE (collectively referred to asEvolved Universal Mobile Telecommunications System (UMTS) TerrestrialRadio Access Network (E-UTRAN)) may interface with the EPC 160 throughbackhaul links 132 (e.g., S1 interface). The base stations 102configured for 5G NR (collectively referred to as Next Generation RAN(NG-RAN)) may interface with core network 190 through backhaul links184. In addition to other functions, the base stations 102 may performone or more of the following functions: transfer of user data, radiochannel ciphering and deciphering, integrity protection, headercompression, mobility control functions (e.g., handover, dualconnectivity), inter-cell interference coordination, connection setupand release, load balancing, distribution for non-access stratum (NAS)messages, NAS node selection, synchronization, radio access network(RAN) sharing, multimedia broadcast multicast service (MBMS), subscriberand equipment trace, RAN information management (RIM), paging,positioning, and delivery of warning messages. The base stations 102 maycommunicate directly or indirectly (e.g., through the EPC 160 or corenetwork 190) with each other over backhaul links 134 (e.g., X2interface). The backhaul links 134 may be wired or wireless.

The base stations 102 may wirelessly communicate with the UEs 104. Eachof the base stations 102 may provide communication coverage for arespective geographic coverage area 110. There may be overlappinggeographic coverage areas 110. For example, the small cell 102′ may havea coverage area 110′ that overlaps the coverage area 110 of one or moremacro base stations 102. A network that includes both small cell andmacrocells may be known as a heterogeneous network. A heterogeneousnetwork may also include Home Evolved Node Bs (eNBs) (HeNBs), which mayprovide service to a restricted group known as a closed subscriber group(CSG). The communication links 120 between the base stations 102 and theUEs 104 may include uplink (UL) (also referred to as reverse link)transmissions from a UE 104 to a base station 102 and/or downlink (DL)(also referred to as forward link) transmissions from a base station 102to a UE 104. The communication links 120 may use multiple-input andmultiple-output (MIMO) antenna technology, including spatialmultiplexing, beamforming, and/or transmit diversity. The communicationlinks may be through one or more carriers. The base stations 102/UEs 104may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz)bandwidth per carrier allocated in a carrier aggregation of up to atotal of Yx MHz (x component carriers) used for transmission in eachdirection. The carriers may or may not be adjacent to each other.Allocation of carriers may be asymmetric with respect to DL and UL(e.g., more or fewer carriers may be allocated for DL than for UL). Thecomponent carriers may include a primary component carrier and one ormore secondary component carriers. A primary component carrier may bereferred to as a primary cell (PCell) and a secondary component carriermay be referred to as a secondary cell (SCell).

Certain UEs 104 may communicate with each other using device-to-device(D2D) communication link 158. The D2D communication link 158 may use theDL/UL WWAN spectrum. The D2D communication link 158 may use one or moresidelink channels, such as a physical sidelink broadcast channel(PSBCH), a physical sidelink discovery channel (PSDCH), a physicalsidelink shared channel (PSSCH), and a physical sidelink control channel(PSCCH). D2D communication may be through a variety of wireless D2Dcommunications systems, such as for example, FlashLinQ, WiMedia,Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

The wireless communications system may further include a Wi-Fi accesspoint (AP) 150 in communication with Wi-Fi stations (STAs) 152 viacommunication links 154 in a 5 GHz unlicensed frequency spectrum. Whencommunicating in an unlicensed frequency spectrum, the STAs 152/AP 150may perform a clear channel assessment (CCA) prior to communicating inorder to determine whether the channel is available.

The small cell 102′ may operate in a licensed and/or an unlicensedfrequency spectrum. When operating in an unlicensed frequency spectrum,the small cell 102′ may employ NR and use the same 5 GHz unlicensedfrequency spectrum as used by the Wi-Fi AP 150. The small cell 102′,employing NR in an unlicensed frequency spectrum, may boost coverage toand/or increase capacity of the access network.

A base station 102, whether a small cell 102′ or a large cell (e.g.,macro base station), may include an eNB, gNodeB (gNB), or another typeof base station. Some base stations, such as gNB 180 may operate in atraditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies,and/or near mmW frequencies in communication with the UE 104. When thegNB 180 operates in mmW or near mmW frequencies, the gNB 180 may bereferred to as an mmW base station. Extremely high frequency (EHF) ispart of the RF in the electromagnetic spectrum. EHF has a range of 30GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters.Radio waves in the band may be referred to as a millimeter wave. NearmmW may extend down to a frequency of 3 GHz with a wavelength of 100millimeters. The super high frequency (SHF) band extends between 3 GHzand 30 GHz, also referred to as centimeter wave. Communications usingthe mmW/near mmW radio frequency band (e.g., 3 GHz-300 GHz) hasextremely high path loss and a short range. The mmW base station 180 mayutilize beamforming 182 with the UE 104 to compensate for the extremelyhigh path loss and short range.

The base station 180 may transmit a beamformed signal to the UE 104 inone or more transmit directions 182′. The UE 104 may receive thebeamformed signal from the base station 180 in one or more receivedirections 182″. The UE 104 may also transmit a beamformed signal to thebase station 180 in one or more transmit directions. The base station180 may receive the beamformed signal from the UE 104 in one or morereceive directions. The base station 180/UE 104 may perform beamtraining to determine the best receive and transmit directions for eachof the base station 180/UE 104. The transmit and receive directions forthe base station 180 may or may not be the same. The transmit andreceive directions for the UE 104 may or may not be the same.

The EPC 160 may include a Mobility Management Entity (MME) 162, otherMMEs 164, a Serving Gateway 166, a Multimedia Broadcast MulticastService (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC)170, and a Packet Data Network (PDN) Gateway 172. The MME 162 may be incommunication with a Home Subscriber Server (HSS) 174. The MME 162 isthe control node that processes the signaling between the UEs 104 andthe EPC 160. Generally, the MME 162 provides bearer and connectionmanagement. All user Internet protocol (IP) packets are transferredthrough the Serving Gateway 166, which itself is connected to the PDNGateway 172. The PDN Gateway 172 provides UE IP address allocation aswell as other functions. The PDN Gateway 172 and the BM-SC 170 areconnected to the IP Services 176. The IP Services 176 may include theInternet, an intranet, an IP Multimedia Subsystem (IMS), a PS StreamingService, and/or other IP services. The BM-SC 170 may provide functionsfor MBMS user service provisioning and delivery. The BM-SC 170 may serveas an entry point for content provider MBMS transmission, may be used toauthorize and initiate MBMS Bearer Services within a public land mobilenetwork (PLMN), and may be used to schedule MBMS transmissions. The MBMSGateway 168 may be used to distribute MBMS traffic to the base stations102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN)area broadcasting a particular service, and may be responsible forsession management (start/stop) and for collecting eMBMS relatedcharging information.

The core network 190 may include a Access and Mobility ManagementFunction (AMF) 192, other AMFs 193, a Session Management Function (SMF)194, and a User Plane Function (UPF) 195. The AMF 192 may be incommunication with a Unified Data Management (UDM) 196. The AMF 192 isthe control node that processes the signaling between the UEs 104 andthe core network 190. Generally, the AMF 192 provides QoS flow andsession management. All user Internet protocol (IP) packets aretransferred through the UPF 195. The UPF 195 provides UE IP addressallocation as well as other functions. The UPF 195 is connected to theIP Services 197. The IP Services 197 may include the Internet, anintranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service,and/or other IP services.

The base station may also be referred to as a gNB, Node B, evolved NodeB (eNB), an access point, a base transceiver station, a radio basestation, a radio transceiver, a transceiver function, a basic serviceset (BSS), an extended service set (ESS), a transmit reception point(TRP), or some other suitable terminology. The base station 102 providesan access point to the EPC 160 or core network 190 for a UE 104.Examples of UEs 104 include a cellular phone, a smart phone, a sessioninitiation protocol (SIP) phone, a laptop, a personal digital assistant(PDA), a satellite radio, a global positioning system, a multimediadevice, a video device, a digital audio player (e.g., MP3 player), acamera, a game console, a tablet, a smart device, a wearable device, avehicle, an electric meter, a gas pump, a large or small kitchenappliance, a healthcare device, an implant, a sensor/actuator, adisplay, or any other similar functioning device. Some of the UEs 104may be referred to as IoT devices (e.g., parking meter, gas pump,toaster, vehicles, heart monitor, etc.). The UE 104 may also be referredto as a station, a mobile station, a subscriber station, a mobile unit,a subscriber unit, a wireless unit, a remote unit, a mobile device, awireless device, a wireless communications device, a remote device, amobile subscriber station, an access terminal, a mobile terminal, awireless terminal, a remote terminal, a handset, a user agent, a mobileclient, a client, or some other suitable terminology.

Referring again to FIG. 1, in certain aspects, the UE 104 may beconfigured to monitor for a group WUS at a determined location. Forexample, the UE 104 of FIG. 1 may include a monitor component 198configured to monitor for a group WUS at a determined location in anallocation of resources. The UE 104 may receive, from a base station,the allocation of resources assigned to one or more UEs in a UE group,the allocation of resources comprising a group WUS resource. The UE 104may determine a location of the group WUS resource within a set of WUSresources associated with a paging occasion.

Referring again to FIG. 1, in certain aspects, the base station 102/180may be configured to transmit a group WUS resource. For example, thebase station 102/180 of FIG. 1 may include a WUS component 199configured to transmit, to one or more UEs in a UE group, an allocationof resources assigned to the one or more UEs in the UE group, theallocation of resources comprising a group WUS resource within a set ofWUS resources associated with a paging occasion. The base station102/180 may group one or more UEs in the UE group.

Although the following description may be focused on 5G NR, the conceptsdescribed herein may be applicable to other similar areas, such as LTE,LTE-A, CDMA, GSM, and other wireless technologies.

FIG. 2A is a diagram 200 illustrating an example of a first subframewithin a 5G/NR frame structure. FIG. 2B is a diagram 230 illustrating anexample of DL channels within a 5G/NR subframe. FIG. 2C is a diagram 250illustrating an example of a second subframe within a 5G/NR framestructure. FIG. 2D is a diagram 280 illustrating an example of ULchannels within a 5G/NR subframe. The 5G/NR frame structure may be FDDin which for a particular set of subcarriers (carrier system bandwidth),subframes within the set of subcarriers are dedicated for either DL orUL, or may be TDD in which for a particular set of subcarriers (carriersystem bandwidth), subframes within the set of subcarriers are dedicatedfor both DL and UL. In the examples provided by FIGS. 2A, 2C, the 5G/NRframe structure is assumed to be TDD, with subframe 4 being configuredwith slot format 28 (with mostly DL), where D is DL, U is UL, and X isflexible for use between DL/UL, and subframe 3 being configured withslot format 34 (with mostly UL). While subframes 3, 4 are shown withslot formats 34, 28, respectively, any particular subframe may beconfigured with any of the various available slot formats 0-61. Slotformats 0, 1 are all DL, UL, respectively. Other slot formats 2-61include a mix of DL, UL, and flexible symbols. UEs are configured withthe slot format (dynamically through DL control information (DCI), orsemi-statically/statically through radio resource control (RRC)signaling) through a received slot format indicator (SFI). Note that thedescription infra applies also to a 5G/NR frame structure that is TDD.

Other wireless communication technologies may have a different framestructure and/or different channels. A frame (10 ms) may be divided into10 equally sized subframes (1 ms). Each subframe may include one or moretime slots. Subframes may also include mini-slots, which may include 7,4, or 2 symbols. Each slot may include 7 or 14 symbols, depending on theslot configuration. For slot configuration 0, each slot may include 14symbols, and for slot configuration 1, each slot may include 7 symbols.The symbols on DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. Thesymbols on UL may be CP-OFDM symbols (for high throughput scenarios) ordiscrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (alsoreferred to as single carrier frequency-division multiple access(SC-FDMA) symbols) (for power limited scenarios; limited to a singlestream transmission). The number of slots within a subframe is based onthe slot configuration and the numerology. For slot configuration 0,different numerologies μ 0 to 5 allow for 1, 2, 4, 8, 16, and 32 slots,respectively, per subframe. For slot configuration 1, differentnumerologies 0 to 2 allow for 2, 4, and 8 slots, respectively, persubframe. Accordingly, for slot configuration 0 and numerology μ, thereare 14 symbols/slot and 2^(μ) slots/subframe. The subcarrier spacing andsymbol length/duration are a function of the numerology. The subcarrierspacing may be equal to 2^(μ)*15 kKz, where μ is the numerology 0 to 5.As such, the numerology μ=0 has a subcarrier spacing of 15 kHz and thenumerology μ=5 has a subcarrier spacing of 480 kHz. The symbollength/duration is inversely related to the subcarrier spacing. FIGS.2A-2D provide an example of slot configuration 0 with 14 symbols perslot and numerology μ=0 with 1 slot per subframe. The subcarrier spacingis 15 kHz and symbol duration is approximately 66.7 μs.

A resource grid may be used to represent the frame structure. Each timeslot includes a resource block (RB) (also referred to as physical RBs(PRBs)) that extends 12 consecutive subcarriers. The resource grid isdivided into multiple resource elements (REs). The number of bitscarried by each RE depends on the modulation scheme.

As illustrated in FIG. 2A, some of the REs carry reference (pilot)signals (RS) for the UE. The RS may include demodulation RS (DM-RS)(indicated as R_(x) for one particular configuration, where 100x is theport number, but other DM-RS configurations are possible) and channelstate information reference signals (CSI-RS) for channel estimation atthe UE. The RS may also include beam measurement RS (BRS), beamrefinement RS (BRRS), and phase tracking RS (PT-RS).

FIG. 2B illustrates an example of various DL channels within a subframeof a frame. The physical downlink control channel (PDCCH) carries DCIwithin one or more control channel elements (CCEs), each CCE includingnine RE groups (REGs), each REG including four consecutive REs in anOFDM symbol. A primary synchronization signal (PSS) may be within symbol2 of particular subframes of a frame. The PSS is used by a UE 104 todetermine subframe/symbol timing and a physical layer identity. Asecondary synchronization signal (SSS) may be within symbol 4 ofparticular subframes of a frame. The SSS is used by a UE to determine aphysical layer cell identity group number and radio frame timing. Basedon the physical layer identity and the physical layer cell identitygroup number, the UE can determine a physical cell identifier (PCI).Based on the PCI, the UE can determine the locations of theaforementioned DM-RS. The physical broadcast channel (PBCH), whichcarries a master information block (MIB), may be logically grouped withthe PSS and SSS to form a synchronization signal (SS)/PBCH block. TheMIB provides a number of RBs in the system bandwidth and a system framenumber (SFN). The physical downlink shared channel (PDSCH) carries userdata, broadcast system information not transmitted through the PBCH suchas system information blocks (SIBs), and paging messages.

As illustrated in FIG. 2C, some of the REs carry DM-RS (indicated as Rfor one particular configuration, but other DM-RS configurations arepossible) for channel estimation at the base station. The UE maytransmit DM-RS for the physical uplink control channel (PUCCH) and DM-RSfor the physical uplink shared channel (PUSCH). The PUSCH DM-RS may betransmitted in the first one or two symbols of the PUSCH. The PUCCHDM-RS may be transmitted in different configurations depending onwhether short or long PUCCHs are transmitted and depending on theparticular PUCCH format used. Although not shown, the UE may transmitsounding reference signals (SRS). The SRS may be used by a base stationfor channel quality estimation to enable frequency-dependent schedulingon the UL.

FIG. 2D illustrates an example of various UL channels within a subframeof a frame. The PUCCH may be located as indicated in one configuration.The PUCCH carries uplink control information (UCI), such as schedulingrequests, a channel quality indicator (CQI), a precoding matrixindicator (PMI), a rank indicator (RI), and HARQ ACK/NACK feedback. ThePUSCH carries data, and may additionally be used to carry a bufferstatus report (BSR), a power headroom report (PHR), and/or UCI.

FIG. 3 is a block diagram of a base station 310 in communication with aUE 350 in an access network. In the DL, IP packets from the EPC 160 maybe provided to a controller/processor 375. The controller/processor 375implements layer 3 and layer 2 functionality. Layer 3 includes a radioresource control (RRC) layer, and layer 2 includes a service dataadaptation protocol (SDAP) layer, a packet data convergence protocol(PDCP) layer, a radio link control (RLC) layer, and a medium accesscontrol (MAC) layer. The controller/processor 375 provides RRC layerfunctionality associated with broadcasting of system information (e.g.,MIB, SIBs), RRC connection control (e.g., RRC connection paging, RRCconnection establishment, RRC connection modification, and RRCconnection release), inter radio access technology (RAT) mobility, andmeasurement configuration for UE measurement reporting; PDCP layerfunctionality associated with header compression/decompression, security(ciphering, deciphering, integrity protection, integrity verification),and handover support functions; RLC layer functionality associated withthe transfer of upper layer packet data units (PDUs), error correctionthrough ARQ, concatenation, segmentation, and reassembly of RLC servicedata units (SDUs), re-segmentation of RLC data PDUs, and reordering ofRLC data PDUs; and MAC layer functionality associated with mappingbetween logical channels and transport channels, multiplexing of MACSDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs,scheduling information reporting, error correction through HARQ,priority handling, and logical channel prioritization.

The transmit (TX) processor 316 and the receive (RX) processor 370implement layer 1 functionality associated with various signalprocessing functions. Layer 1, which includes a physical (PHY) layer,may include error detection on the transport channels, forward errorcorrection (FEC) coding/decoding of the transport channels,interleaving, rate matching, mapping onto physical channels,modulation/demodulation of physical channels, and MIMO antennaprocessing. The TX processor 316 handles mapping to signalconstellations based on various modulation schemes (e.g., binaryphase-shift keying (BPSK), quadrature phase-shift keying (QPSK),M-phase-shift keying (M-PSK), M-quadrature amplitude modulation(M-QAM)). The coded and modulated symbols may then be split intoparallel streams. Each stream may then be mapped to an OFDM subcarrier,multiplexed with a reference signal (e.g., pilot) in the time and/orfrequency domain, and then combined together using an Inverse FastFourier Transform (IFFT) to produce a physical channel carrying a timedomain OFDM symbol stream. The OFDM stream is spatially precoded toproduce multiple spatial streams. Channel estimates from a channelestimator 374 may be used to determine the coding and modulation scheme,as well as for spatial processing. The channel estimate may be derivedfrom a reference signal and/or channel condition feedback transmitted bythe UE 350. Each spatial stream may then be provided to a differentantenna 320 via a separate transmitter 318TX. Each transmitter 318TX maymodulate an RF carrier with a respective spatial stream fortransmission.

At the UE 350, each receiver 354RX receives a signal through itsrespective antenna 352. Each receiver 354RX recovers informationmodulated onto an RF carrier and provides the information to the receive(RX) processor 356. The TX processor 368 and the RX processor 356implement layer 1 functionality associated with various signalprocessing functions. The RX processor 356 may perform spatialprocessing on the information to recover any spatial streams destinedfor the UE 350. If multiple spatial streams are destined for the UE 350,they may be combined by the RX processor 356 into a single OFDM symbolstream. The RX processor 356 then converts the OFDM symbol stream fromthe time-domain to the frequency domain using a Fast Fourier Transform(FFT). The frequency domain signal comprises a separate OFDM symbolstream for each subcarrier of the OFDM signal. The symbols on eachsubcarrier, and the reference signal, are recovered and demodulated bydetermining the most likely signal constellation points transmitted bythe base station 310. These soft decisions may be based on channelestimates computed by the channel estimator 358. The soft decisions arethen decoded and deinterleaved to recover the data and control signalsthat were originally transmitted by the base station 310 on the physicalchannel. The data and control signals are then provided to thecontroller/processor 359, which implements layer 3 and layer 2functionality.

The controller/processor 359 can be associated with a memory 360 thatstores program codes and data. The memory 360 may be referred to as acomputer-readable medium. In the UL, the controller/processor 359provides demultiplexing between transport and logical channels, packetreassembly, deciphering, header decompression, and control signalprocessing to recover IP packets from the EPC 160. Thecontroller/processor 359 is also responsible for error detection usingan ACK and/or NACK protocol to support HARQ operations.

Similar to the functionality described in connection with the DLtransmission by the base station 310, the controller/processor 359provides RRC layer functionality associated with system information(e.g., MIB, SIBs) acquisition, RRC connections, and measurementreporting; PDCP layer functionality associated with headercompression/decompression, and security (ciphering, deciphering,integrity protection, integrity verification); RLC layer functionalityassociated with the transfer of upper layer PDUs, error correctionthrough ARQ, concatenation, segmentation, and reassembly of RLC SDUs,re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; andMAC layer functionality associated with mapping between logical channelsand transport channels, multiplexing of MAC SDUs onto TBs,demultiplexing of MAC SDUs from TBs, scheduling information reporting,error correction through HARQ, priority handling, and logical channelprioritization.

Channel estimates derived by a channel estimator 358 from a referencesignal or feedback transmitted by the base station 310 may be used bythe TX processor 368 to select the appropriate coding and modulationschemes, and to facilitate spatial processing. The spatial streamsgenerated by the TX processor 368 may be provided to different antenna352 via separate transmitters 354TX. Each transmitter 354TX may modulatean RF carrier with a respective spatial stream for transmission.

The UL transmission is processed at the base station 310 in a mannersimilar to that described in connection with the receiver function atthe UE 350. Each receiver 318RX receives a signal through its respectiveantenna 320. Each receiver 318RX recovers information modulated onto anRF carrier and provides the information to a RX processor 370.

The controller/processor 375 can be associated with a memory 376 thatstores program codes and data. The memory 376 may be referred to as acomputer-readable medium. In the UL, the controller/processor 375provides demultiplexing between transport and logical channels, packetreassembly, deciphering, header decompression, control signal processingto recover IP packets from the UE 350. IP packets from thecontroller/processor 375 may be provided to the EPC 160. Thecontroller/processor 375 is also responsible for error detection usingan ACK and/or NACK protocol to support HARQ operations.

At least one of the TX processor 368, the RX processor 356, and thecontroller/processor 359 may be configured to perform aspects inconnection with 198 of FIG. 1.

At least one of the TX processor 316, the RX processor 370, and thecontroller/processor 375 may be configured to perform aspects inconnection with 199 of FIG. 1.

A UE may be configured for discontinuous reception (DRX). The UE maymonitor for a page from the base station in order to determine whetherto wake up to receiving communication from the base station. In someinstances, a wake-up signal (WUS) can be sent from a base station to aUE in order to provide notification of an upcoming paging occasion (PO).When sending and receiving multiple WUSs and POs, it can be beneficialto determine a strategy and/or conserve the amount of WUSs and POs thatare sent throughout the wireless system. By doing so, the overall powerconsumption of the wireless system can be improved.

UEs may be configured for a group WUS. A base station can group aplurality of UEs into one or more UE groups and may transmit a group WUSto a particular group of UEs. The base station may be able to assign aUE group identification or a group WUS sequence to the UE group.Grouping the UEs allows the base station to transmit a WUS to a specificset of UEs within a particular UE group, instead of transmitting the WUSto all UEs served by the base station. Grouping the UEs allows the basestation to determine and transmit a WUS identifying which UEs within theUE group should wake-up for a paging occasion (PO). Prior to receivingthe transmission, the UEs can listen for the WUS. After receiving theWUS, the identified UEs can wake-up before receiving the correspondingPO. Each WUS may have a duration that is limited to avoid exceeding amaximum allowed WUS duration. Additionally, a gap period may be providedbetween the end of the WUS and the PO.

The base station can also determine the total number of different UEgroups, wherein each UE is assigned to a particular group. Within eachgroup, there can be group-capable or grouped UEs and/or ungrouped UEs.The ungrouped UEs may be UEs that do not support a group WUS or is notassigned to a group WUS. An ungrouped WUS may be referred to as a legacyWUS. The grouped UEs may be UE that are capable of being assigned to aUE group, while the legacy or ungrouped UEs may not be capable of beingassigned to a UE group. In some aspects, each ungrouped UE can receivethe same WUS, e.g., an ungrouped WUS, and each grouped UE can receive agroup WUS that targets the particular group or sub-group for that UE,e.g., a group-specific WUS. The ungrouped WUS can identify whichungrouped UEs should wake-up for an ungrouped PO. Likewise, the groupWUS can identify which grouped UEs should wake-up for a group-specificPO.

According to a first implementation, up to two time-multiplexed WUSresources, for both the ungrouped WUS and the group WUS, may beconfigured. The first implementation may be applied for communicationbased on NB-IoT as well as other types of wireless communication. Thelocation of a group WUS may be determined in relation to the ungroupedWUS. In instances where one group WUS resource is configured, the groupWUS resource may be configured to coincide with the ungrouped WUSresource or to occur immediately before the ungrouped WUS resource. Ininstances where two group WUS resources are configured, the first groupWUS resource may coincide with the ungrouped WUS resource and the secondgroup WUS resource may occur immediately before the first group WUSresource.

According to a second implementation, the ungrouped WUS and group WUSmay be configured simultaneously to have up to 4 orthogonal WUSresources including the ungrouped WUS resources. The secondimplementation may be employed, for example, for machine typecommunication (MTC) as well as other types of wireless communication. Upto 2 orthogonal resources including the ungrouped WUS resource may beconfigured in the time domain, while up to 2 orthogonal resources may beconfigured in the frequency domain. In some instances, the twoorthogonal resources do not necessarily include the ungrouped WUSresource.

An ungrouped WUS and a group WUS may be configured on the same ungroupedWUS resource based on system information. If a group WUS is configuredto share WUS resources with a non-group WUS, a common WUS that is commonfor all of the groups of UEs may be configured to be a non-group WUS ora legacy WUS. The common WUS may also be configured to be a group WUSthat is common to all UE groups, and therefore may not be considered alegacy WUS. The group WUS may use the same gap configurations as theungrouped WUS, with the exception of differences from possible TDM. Theuse of the same gap period in time may help to avoid additionalsignaling for a separate gap configuration. A UE may assume that atransmit power for a group WUS and an ungrouped WUS is the same. Thebase station may set a power offset for both the grouped and ungroupedWUS relative to a reference signal, e.g., WUS energy per resourceelement (EPRE) relative to cell-specific reference signal (RS) EPRE.Additionally, a maximum WUS duration for the group WUS may be the sameas for the ungrouped WUS.

A UE may detect 2 sequences, the common WUS (that is common to all ofthe UE groups) and the group WUS associated to the group to which the UEbelongs. For at least a group WUS in the same WUS resource, an ungroupedWUS with phase shifts “g” may be selected as a group WUS sequence designaccording to the following:

w_(group)(m′)=w(m′)exp(j2πgm/G).

G=132 and g=14*(UE_group_index+1), 0≤UE_group_index≤7

The sequence resulting from g=126 may be the common WUS, unless a commonWUS is configured to be an ungrouped WUS. Different WUS resources mayuse different scrambling sequences by using different initializationseeds, e.g., c_init, or by using different truncated part of a longscrambling sequence with same scrambling seed as that of ungrouped WUS.

In some instances, the group WUS may be enabled independently from theungrouped WUS. For example, the group WUS may be enabled withoutenabling the ungrouped WUS. Alternatively, the group WUS and theungrouped WUS may both be enabled. Presented herein are aspects of thedisclosure directed to indicating the configuration of the group WUS. Aspresented herein, the group WUS configuration may be determined using atleast some of the parameters of the ungrouped WUS.

FIG. 4 illustrates examples 400 of patterns of WUS resources. In someinstances, WUS resources that are associated with the same PO and samegap on the same narrow band may be consecutive to each other. Thisallows for a reduction in peak to average power ration (PAPR) as well asthe combinations of the patterns. The WUS resources may include theresources used to transmit ungrouped and group WUS sequences. Ininstances where the ungrouped WUS is configured, the location of the WUSresource (e.g., #0) for ungrouped WUS sequence (e.g., #0) may be used toindicate the location of other WUS resources used to transmit othergroup WUS sequences. In some aspects, if the ungrouped WUS resource #0is located in the top 2-RB (a first resource block and a second resourceblock) of a six resource block bandwidth, Pattern 1 402 may be used. Insome aspects, if the ungrouped WUS resource #0 is located in the center2-RB (a third resource block and a fourth resource block) of the sixresource block bandwidth, a 1-bit indication may be used to indicate thedesired pattern, for example Pattern 2-1 404 or Pattern 2-2 406 may beused. In some aspects, one of the Patterns 2-1 or 2-2 may be predefinedwithout additional signaling. In yet some aspects, if the ungrouped WUSresource #0 is located in the bottom 2-RB (a fifth resource block and asixth resource block) of the six resource block bandwidth, then Pattern3 408 may be used. The WUS resources #1, #2, and #3 may be configured totransmit group WUS sequences, while the WUS resource #0 may beconfigured to be shared by the ungrouped WUS sequence and group WUSsequences. In aspects where the ungrouped WUS is not configured, thenall the WUS resources are used to transmit group WUS sequences. In someaspects, a 2-bit indication may be used to indicate the WUS resource #0frequency position, such as the top, center or bottom 2-PRB in thesix-RB bandwidth, which also implicitly indicated the Pattern 1, 2-1 or3 based on the indicated location of WUS resource #0, respectively;while in some aspects, a 2-bit indication may be used to directlyindicate Patterns 1, 2-1, 2-2, or 3. Table 1 summarizes the location ofWUS resource Pattern 1, 2 (same as Pattern 2-1) or 3, where a 1st timeslot for WUS (e.g., corresponding to WUS resource #0 for NB-IoT, WUSresource #0, #1 for MTC) may be the time duration of [w0, g0-1],starting from subframe w0 and ends in subframe g0-1 with w0 as thelatest subframe such that there is a total of valid DL subframe for theconfigured WUS max duration in the maximum duration and g0 asg0=PO−timeoffset (same as that of ungrouped WUS); and a 2nd time slotfor WUS (e.g., corresponding to WUS resource #1 for NB-IoT, WUS resource#2, #3 for MTC) is defined as [w0′,w0-1], starting from w0′ subframe andends in subframe w0-1 with w0′ as the latest subframe such that there isa total of valid DL subframe for the configured WUS max duration in themaximum duration. In this regard, there may be a total of valid DLsubframe for the 2 times of WUS max duration that ends in subframe g0-1.If ungrouped WUS is configured, the location of the WUS resources forgroup WUS may be dependent on the configuration of the ungrouped WUSconfiguration. The ungrouped WUS freqLocation {n0, n2, or n4} can beused to indicate Pattern 1, 2 or 3 implicitly based on the predefinedtable. The number of WUS resources for group WUS can be M={1, 2, 3 or4}, which requires 2 bits. The location and number of WUS resources maybe jointed signaled as WUS resource patterns. With the configured WUSresource pattern, the WUS resource index increases in frequency firstand time second manner relative to the legacy WUS resource (e.g., WUSresource #0 and #1 FDMed in the same time slot, and WUS resource #2 and#3 FDMed in another time slot for MTC). In addition, 1 bit is used toindicate whether WUS resource #0 for ungrouped WUS is allocated to beshared by ungrouped WUS and group WUS or not. Therefore, in total 3 bitsmay be utilized to indicate the number M and indices N_(ID) ^(resource)for non-legacy WUS resources as: if N_(ID) ^(resource)=0 is used forgroup WUS, N_(ID) ^(resource)=m with {m=0 . . . (M−1)} and M=1, 2, 3 or4; otherwise, N_(ID) ^(resource)=m+1 with {m=0 . . . (M−1)} and M=1, 2,or 3. On the other hand, if ungrouped WUS is not configured, N_(ID)^(resource)=0˜3 can be used for group WUS. 2 bits are used to indicateN_(ID) ^(resource)=m with {m=0 . . . (M−1)} and M=1, 2, 3 or 4 for WUSresources of group WUS. In addition, if the 2-bit freqLocation for WUSresource #0 is introduced for group WUS (similar as that of ungroupedWUS), the WUS resource location can be selected among Pattern 1, 2 and 3in Table 1. Alternatively, 1 bit is introduced to choose Pattern 1 orPattern 2 considering the similarity of 4-resource location for Pattern2 and 3 to limit 3 bits in total for WUS resource configuration forgroup WUS.

TABLE 1 Patterns for WUS resource time/frequency location for group WUSWUS resource location Pattern 1 Pattern 2 Pattern 3 m = 0 freqLocationn0 n2 n4 timeLocation 1st time slot for WUS m = 1 freqLocation n2 n4 n2timeLocation 1st time slot for WUS m = 2 freqLocation n0 n2 n4timeLocation 2nd time slot for WUS m = 3 freqLocation n2 n4 n2timeLocation 2nd time slot for WUS

FIG. 5 illustrates additional examples 500 of patterns of WUS resources.A distinction between the patterns of FIG. 5 and those of FIG. 4, isthat the patterns of FIG. 5 include resources that are not consecutivein time and/or frequency. The patterns having non-consecutive mappingmay allow for scheduling flexibility and may improve frequency diversityin instances where frequency hopping or alternating UE group amongdifferent WUS resources is enabled.

FIG. 6 illustrates an example 600 of WUS mapping in eDRX mode. A UE maybe configured by a base station for a DRX mode or eDRX. When there is nodata to be transmitted between the UE and base station in eitherdirection, e.g., no uplink or downlink transmissions, the UE may enterthe DRX mode or eDRX mode in which the UE may monitor a control channeldiscontinuously using a sleep and wake cycle. eDRX mode is similar toDRX but has longer timer values which allows the UE to remain in a sleepcycle for a longer duration than DRX, which may increase power savings.DRX and eDRX may help to conserve battery power at the UE. WithoutDRX/eDRX, the UE would need to monitor the control channel in everysubframe to check whether there is data for the UE. Continuousmonitoring of the control channel places a demand on the UE's batterypower. The base station may send a WUS to a UE in advance of a PO whenthe base station will transmit communication to the UE. If the UEreceives a WUS, the UE may wake-up by preparing to receive thecommunication during the PO. If the UE does not receive a WUS, the UEmay return to the sleep mode.

In some aspects, a UE that supports eDRX with the ungrouped WUS may beconfigured with the number of POs associated with an ungrouped WUS.Based on the configuration, the UE monitors one WUS that is associatedwith a group of consecutive POs for power savings. If the UE isconfigured with a number of POs that is equal to three, the UE willmonitor a WUS and will either wake up or remain in a sleep mode for thethree POs associated with the WUS based on whether the UE receives theWUS. In some aspects, for UEs that support eDRX and group WUS, when anungrouped WUS is configured, the number of POs may be applied to eDRXUEs to enable the ungrouped and group WUS associated with the same groupof consecutive POs on the same narrowband or carriers. In some aspects,when ungrouped WUS is not configured, for eDRX UEs with group WUS, thenumber of POs may be configured to enable the group WUS associated withthe same group of consecutive POs on the same narrowband or carriers.

In some aspects, a UE may be configured to alternate between UE groups.Grouped UEs may be configured to alternate WUS UE groups among Mconfigured WUS resources, where M=2, 3, 4. In instances where there aremore than one WUS resource allocated for group WUS, e.g., M>1, the UEgroup(s) may be enabled to monitor the resource with predefined WUSresource index order in different POs. Alternating UE groups may beimplicitly enabled when M>1 or explicitly enabled by 1 bit in SIB percell-specific, e.g., for MTC group WUS or carrier-specific, e.g., forNB-IoT group WUS. For MTC, up to 4 WUS resources can be allocated forgroup WUS, i.e., M<=4; and for NB-IoT, up to 2 WUS resources can beallocated for group WUS, i.e., M<=2, which means alternating the UEgroups only if M=2 for NB-IoT WUS.

There are different ways to alternate the UE groups. A first method maybe to alternate all UE groups per WUS resource together (change WUSresource ID only), as illustrated as

${m = {\left( {m_{0} + \frac{{SFN} + {1024{H\_{SFN}}}}{T + {offset}}} \right){mod}\mspace{14mu} M}},$

where

-   -   m={0, . . . , M−1} is used to identify WUS resource index for a        UE group;    -   m₀={0, . . . , M−1} is the initial WUS resource ID index for a        UE group;    -   SFN is the radio frame index, H_SFN is the hyper-SFN;    -   T should be common for counting the PO index here so as to keep        the UEs in same group monitoring same WUS resource m when        alternating (UE still monitors the WUS based on the UE-specific        DRX if configured) and Offset is used for randomization for        UE-specific DRX with following possible settings:

$\mspace{20mu}{{T = {{T_{cell}\mspace{14mu}\text{cell-specific}\mspace{14mu}{DRX}\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},\mspace{20mu}{{{or}\mspace{14mu} T} = {{T_{\min}\mspace{14mu}\min\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},{{{or}\mspace{14mu} T} = {{T_{\min}\mspace{14mu}{and}\mspace{14mu}{offset}} = {{{LCM}\left( {M,\frac{T_{cell}}{T_{\min}}} \right)}{T_{\min}\left( {{LCM}:{{least}\mspace{14mu}{common}\mspace{14mu}{multiple}\mspace{14mu}{of}\mspace{14mu}{two}\mspace{14mu}{numbers}}} \right)}}}}}$

-   -   with T_(cell) and T_(min) to be indicated in SIB respectively or        T_(cell) and T_(min) to be predefined as the maximum and minimum        value of the possible UE-specific DRX cycles respectively.

A second method may be to alternate a minimum number of UE groups basedon the UE group ID (change WUS resource ID and phase ID for group WUS),as illustrated as

$g = {\left( {g_{0} + {G_{\min}\frac{{SFN} + {1024{H\_{SFN}}}}{T + {offset}}}} \right){mod}\mspace{14mu} G_{total}}$

where

g₀ = {0, …, G_(total) − 1}  is  the  initial  UE  group  index;${G_{total} = {{\sum_{m = 1}^{M - 1}{G_{m}\mspace{14mu}{and}\mspace{14mu} G_{\min}}} = {\min\limits_{{m = 0},{{\ldots\mspace{14mu} M} - 1}}G_{m}}}};$

-   -   G_(m) is the number of UE groups in resource m defined as

$\mspace{20mu}{m = \left\{ {{{\begin{matrix}0 & {{{if}\mspace{14mu} g} < G_{0}} \\1 & {{{else}\mspace{14mu}{if}\mspace{14mu} G_{0}} \leq g < {G_{0} + G_{1}}} \\2 & {{{{else}\mspace{14mu}{if}\mspace{14mu} G_{0}} + G_{1}} \leq g < {G_{0} + G_{1} + G_{2}}} \\3 & {otherwise}\end{matrix}m} = {\left\{ {0,\ldots,{M - 1}} \right\}\mspace{14mu}{is}\mspace{14mu}{used}\mspace{14mu}{to}\mspace{14mu}{identify}\mspace{14mu}{WUS}\mspace{14mu}{resource}\mspace{14mu}{index}\mspace{14mu}{for}\mspace{14mu} a\mspace{14mu}{UE}\mspace{14mu}{group}}};} \right.}$

-   -   T should be common for counting the PO index here so as to keep        the UEs in same group monitoring same WUS resource m when        alternating (UE still monitors the WUS based on the UE-specific        DRX if configured) and Offset is used for randomization for        UE-specific DRX with following possible settings:

${T = {{T_{cell}\mspace{14mu}\text{cell-specific}\mspace{14mu}{DRX}\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},{{{or}\mspace{14mu} T} = {{T_{\min}\mspace{14mu}\min\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},{{{or}\mspace{14mu} T} = {{T_{\min}\mspace{14mu}{and}\mspace{14mu}{offset}} = {{{LCM}\left( {\frac{G_{total}}{G_{\min}},\frac{T_{cell}}{T_{\min}}} \right)}T_{\min}}}}$

-   -   with T_(cell) and T_(min) to be indicated in SIB respectively or        T_(cell) and T_(min) to be predefined as the maximum and minimum        value of the possible UE-specific DRX cycles respectively.

The first method includes a change of the resource ID, while keeping thesame phase of the WUS sequence, which is based on the group ID in a WUSresource, and does not change the UE groups allocated in one WUSresource. Especially when considering service-based UE grouping, the UEgroups with different services have different paging probability. It ismore reasonable to use different WUS resources to separate the UE groupswith different services to avoid the impact of services with largepaging probability on the other services. The second method may includea change of the resource ID and phase ID, and changes the min UE groups,which may result in mixed services in same WUS resource. The firstmethod may have a potential impact on ungrouped WUS UEs if a largernumber of UE groups move into the ungrouped WUS resource and ungroupedWUS as the common WUS will wake up ungrouped and group WUS UEs together.The second method may be used to maintain the number of UE groups in oneWUS resource.

In some aspects, using first method or second method may be based onwhether ungrouped WUS is configured or not, or ungrouped WUS isconfigured as common WUS for group WUS in the WUS resource #0 or not.For example, if ungrouped WUS is not configured as common WUS for groupWUS in the WUS resource #0, the first method is used; otherwise, thesecond method is used. In some aspects, using the first method or secondmethod may be based on whether service-based UE grouping is used forgroup WUS or not. For example, if service-based UE grouping is used forgroup WUS, the first method is used; otherwise, the second method isused.

Alternatively, the first method can be defined based on the PO index as

m=(m ₀ +PO _(Index)+offset)mod M

and the second method can be defined based on the PO index as

g=(g ₀ +G _(min)(PO _(Index)+offset))mod G _(total),

where

-   -   PO_(Index) is the index of the PO within one DRX cycle as

PO _(Index)=(SFN/T·nB+i _(s))mod nB

-   -   T should be common for counting the PO index here so as to keep        the UEs in same group monitoring same WUS resource m when        alternating (UE still monitors the WUS based on the UE-specific        DRX if configured) and Offset is used for randomization for        UE-specific DRX with following possible settings:

$\mspace{20mu}{{T = {{T_{cell}\mspace{14mu}\text{cell-specific}\mspace{14mu}{DRX}\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},\mspace{20mu}{{{or}\mspace{14mu} T} = {{T_{\min}\mspace{14mu}\min\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{20mu}{and}\mspace{14mu}{offset}} = 0}},{{{or}\mspace{14mu} T} = T_{\min}},{{offset} = {{\frac{{SFN} + {1024{H\_{SFN}}}}{T_{\min} + {{{LCM}\left( {M,\frac{T_{cell}}{T_{\min}}} \right)}T_{\min}}}\mspace{14mu}{for}\mspace{14mu}{the}\mspace{14mu}{first}\mspace{14mu}{method}\mspace{14mu}{and}\mspace{14mu}{offset}} = {\frac{{SFN} + {1024{H\_{SFN}}}}{T_{\min} + {{{LCM}\left( {\frac{G_{total}}{G_{\min}},\frac{T_{cell}}{T_{\min}}} \right)}T_{\min}}}\mspace{14mu}{for}\mspace{14mu}{the}\mspace{14mu}{second}\mspace{14mu}{{method}.}}}}}$

When the offset=0, the UE group may monitor the m-th WUS resource at thei-th PO with m=MOD(m0+i,M), where m0 is the initial WUS resource indexfor the UE group. For example, when M=2,

m-WUS resource monitored at i-th PO i = 0 1 2 3 4 5 6 7 UE group 0 m = 0m = 1 m = 0 m = 1 m = 0 m = 1 m = 0 m = 1 with m0 = 0 UE group 0 m = 1 m= 0 m = 1 m = 0 m = 1 m = 0 m = 1 m = 0 with m0 = 1

In another example, when M=4,

m-WUS resource monitored at i-th PO i = 0 1 2 3 4 5 6 7 UE group 0 m = 0m = 1 m = 0 m = 1 m = 0 m = 1 m = 0 m = 1 with m0 = 0 UE group 0 m = 1 m= 0 m = 1 m = 0 m = 1 m = 0 m = 1 m = 0 with m0 = 1

In instances where the UE changes the monitored WUS resource, as shownabove, the WUS sequence detected by the UE may change or remain thesame. In some aspects, the WUS sequence is changed when the UE groupmonitors a different WUS resource. When the ungrouped WUS is configured,UEs that support ungrouped WUS may only detect ungrouped WUS sequence inthe WUS resource #0. The group WUS sequences in WUS resource #0 may usethe same scrambling sequence as the ungrouped WUS sequence butdifferentiated by phase shifts, e.g.,w_(UE_group_index)(m′)=w(m′)exp(j2πgm/G), where w(m′) is the sequencefor ungrouped WUS sequence and exp(j2πgm/G) is the phase shift withG=132, g=14*(UE_group_index+1), 0≤UE_group_index≤7 and g=126 for commonWUS sequence for the UEs monitoring the same WUS resource. When UEs thatsupport grouping alternate the monitored WUS resource, the WUS sequencemay use the scrambling sequence associated with a different WUS resourceindex.

In instances where the WUS sequence is not changed for the UE group, andis the same for all alternating WUS resources, the same WUS sequence maybe allocated for the UE group regardless of which WUS resource ismonitored. If UEs that do not support grouping are not monitoring theungrouped WUS sequence, then the group WUS sequence may be pre-allocatedto different UE groups.

In some instances, all of the UE groups in the same WUS resource mayalternate the monitored WUS resource index. To alternate the monitoredWUS resource index, the UE's within a particular UE group may monitorfor the WUS using a scrambling sequence that changes based on the WUSresource ID to be monitored. The phase shift of the WUS group sequencemay not change when the UE groups monitor different WUS resources. Thephase shift may be based on a UE group. For example, the phase shift(e.g., g=14*(UE_group_index+1)) may be configured to differentiate theWUS sequence in the same WUS resource with the UE_group_index={0, . . ., 7}. In an example, the scrambling sequence may be {1, −1, j, −j} witha 2-bit scrambling initialization seed, which may be determined based onthe WUS resource ID m={0, 1, 2, 3}. Thus, all UE groups may bealternated in the same WUS resource together such that only thescrambling sequence (e.g., {1, −1, j, −j}) is changed based on themonitored WUS resource index, while keeping the phase shift, which isbased on the group ID in the WUS resource, for the group WUS sequencethe same. These aspects may allow for a reduction of complexity for WUSsequence generation.

In some instances a common WUS sequence may be configured. If a commonWUS sequence is configured, the common WUS sequence may be differentbased on the monitored WUS resource ID. For example, if alternating to alegacy WUS resource with m=0, the common WUS sequence may be configuredas the legacy WUS resource (e.g., g=0, m=0) or may be configured as thenon-legacy WUS sequence (e.g., phase g=14*9, m=0). In some instances,when alternating to the non-legacy WUS resource with m>0, the common WUSsequence may be the non-legacy common WUS sequence having a phaseg=14*9, and the value of m may be determined based on the WUS resourcesavailable. In some instances, for example as shown in the diagram 2200of FIG. 22, there may be 12 UE groups allocated into resources #0 and#1, such that M=2 WUS resources in total. At a first point in time,e.g., a first monitoring occasion, the first resource (e.g., #0) may beused by UE groups 0˜3 to monitor for a WUS with the remaining UE groups4˜11 monitoring the second resource (e.g., #1) for a WUS. For example,for the initial PO 2202 of FIG. 23 (e.g., PO(t0)) the UE group 0-3 maymonitor the #0 resource while the remaining UE groups 4˜11 monitor the#1 resource. In the next PO 2204 of FIG. 23 (e.g., PO(t1)), when the UEgroups alternate to monitoring a different resource for the WUS, the UEgroups 4˜7 may alternate and monitor the resource #0, while the UE group0˜3 may alternate and monitor the resource #1. A corresponding amount ofUE groups (e.g., UE groups 4˜7) may alternate to monitor the resource #0when different resources have been configured to have a different numberof UE groups. In the example of FIG. 22, only UE groups 4˜7 out ofgroups 4˜11 alternated to monitor the resource #0. The phase shift maybe kept the same when alternating or hopping between resources.

A UE group may alternate or hop among the WUS resources. Such hoppingamong WUS resources may be explicitly or implicitly enabled for the UEsin the UE group. In some instances, the UE group alternating or hoppingamong the WUS resources may be implicitly enabled when, for example,M>1, which may enable UE group alternating among M WUS resources forgroup WUS. Therefore, a UE within the UE group may determine, in animplicit manner, that the UE should monitor for the WUS by hopping oralternating among WUS resources based on the number of WUS resources.

A UE may determine to perform alternating or hopping among WUS resourceswhen monitoring for a WUS based on an explicit indication from a basestation. For example, a WUS resource pattern configuration may beindicated by a SIB. For example, in instances where m=0 is allocated forgroup WUS, then N_(ID) ^(resource)=m with m=0˜M−1 and M=2, 3 or 4 may beused for alternating the UE group.

In some instances, as shown in the diagram 2300 of FIG. 23, for NB-IoTwhere M=2, the resources #0 and #1 may be used for alternating the UEgroup. In some instances, for MTC where M=2, 3, or 4, the resources #0and #1 may be used for alternating the UE group when M=2; the resources#0, #1, #2 may be used for alternating the UE group when M=3; or theresources #0, #1, #2, #3 may be used for alternating the UE group whenM=4. In some instances if the legacy WUS sequence is not configured as acommon WUS sequence, then there is no impact. However, in instanceswhere the legacy WUS sequence is configured as a common WUS sequencethere may be a negative impact when more UE groups are moved into legacyWUS resource sharing with the legacy WUS, and the changing (e.g.,alternating or hopping) of the monitored WUS resource per PO may reducethe probability of such an occurrence.

In some instances, where m=0 is not allocated for group WUS, then WUSresource ID N_(ID) ^(resource)=m+1 with m=0˜M−1 and M=2 or 3 may be usedfor alternating UE groups.

In some instances, as shown in the diagram 2310 of FIG. 23, for NB-IoTthere may be only 1 WUS resource and alternating or hopping may not beenabled. In some instances, for MTC where M=2 or 3, the resources #1 or#2 may be used for alternating the UE group when M=2, or the resources#1, #2, or #3 may be used for alternating the UE group when M=3. In theexample of diagram 2310 of FIG. 23, since the #0 resource is notallocated for group WUS, then the UE groups may only alternate between#1, #2, or #3.

Further enhancement may be provided if service-based grouping is usedfor group WUS. Assuming there are S types of services (each serviceassociated to a subset of groups), it would be better to alternate theUE groups that belong to the same service type s (e.g., with similarpaging probability) among the corresponding WUS resources, while notalternating the UE groups with different services.

In some aspects, all of the UE groups per WUS resource may belong to thesame service type s. There may be more than one WUS resource thatbelongs to the same service type s. The first method may alternate allUE groups per WUS resource together belong to the same service type s(change WUS resource ID only), as illustrated as

${m_{s} = {\left( {m_{0,s} + \frac{{SFN} + {1024{H\_{SFN}}}}{T + {offset}}} \right){mod}\mspace{14mu} M_{s}}},$

where

-   -   m_(s)={0, . . . , M_(s)−1} is used to identify WUS resource        index for a UE group belong to the same service type s;    -   m_(0,s)={0, . . . , M_(s)−1} is the initial WUS resource ID        index for a UE group belong to the same service type s;    -   T and offset are set as:

${T = {{T_{\max,s}\mspace{14mu}\max\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{of}\mspace{14mu}{the}\mspace{14mu}{UEs}\mspace{14mu}{belong}\mspace{14mu}{to}\mspace{14mu}{same}\mspace{14mu}{service}\mspace{14mu}{type}\mspace{14mu} s\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},{T = {{T_{\min,s}\mspace{14mu}\min\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{of}\mspace{14mu}{the}\mspace{14mu}{UEs}\mspace{14mu}{belong}\mspace{14mu}{to}\mspace{14mu}{same}\mspace{14mu}{service}\mspace{14mu}{type}\mspace{14mu} s\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},\mspace{20mu}{{{or}\mspace{14mu} T} = {{T_{\min,s}\mspace{14mu}{and}\mspace{14mu}{offset}} = {{{LCM}\left( {M_{s},\frac{T_{\max,s}}{T_{\min,s}}} \right)}T_{\min,s}}}}$

with T_(max,s) and T_(min,s) to be indicated in SIB respectively orT_(max,s) and T_(min,s) to be predefined as the maximum and minimumvalue of the possible UE-specific DRX cycles respectively.

The second method is to alternate only minimum number of UE groups basedon the UE group g_(x,s) belong to same service type s, as illustrated as

$x = {\left( {x_{0} + {G_{\min,s}\frac{{SFN} + {1024{H\_{SFN}}}}{T + {offset}}}} \right){mod}\mspace{14mu} G_{{total},s}}$

where

x_(s) = {0, …, G_(total, s) − 1}  is  the  index  of  UE  group  g_(x, s);x_(0, s) = {0, …, G_(total, s) − 1}  is  the  initial  index  of  UE  group  g_(x, s);${G_{{total},s} = {{\sum_{m = 1}^{M - 1}{G_{m,s}\mspace{14mu}{and}\mspace{14mu} G_{\min,s}}} = {\min\limits_{{m = 0},{{\ldots\mspace{14mu} M} - 1}}G_{m,s}}}};$

-   -   G_(m,s) is the number of UE groups in resource m belong to the        same service type s defined as

$\mspace{20mu}{m = \left\{ {{{\begin{matrix}0 & {{{if}\mspace{14mu} g} < G_{0}} \\1 & {{{else}\mspace{14mu}{if}\mspace{14mu} G_{0}} \leq g < {G_{0} + G_{1}}} \\2 & {{{{else}\mspace{14mu}{if}\mspace{14mu} G_{0}} + G_{1}} \leq g < {G_{0} + G_{1} + G_{2}}} \\3 & {otherwise}\end{matrix}m} = {\left\{ {0,\ldots,{M - 1}} \right\}\mspace{14mu}{is}\mspace{14mu}{used}\mspace{14mu}{to}\mspace{14mu}{identify}\mspace{14mu}{WUS}\mspace{14mu}{resource}\mspace{14mu}{index}\mspace{14mu}{for}\mspace{14mu} a\mspace{14mu}{UE}\mspace{14mu}{group}\mspace{14mu}{belong}\mspace{14mu}{to}\mspace{14mu}{the}\mspace{14mu}{same}\mspace{14mu}{service}\mspace{14mu}{type}\mspace{14mu} s}};} \right.}$

-   -   T and offset are set as:

${T = {{T_{\max,s}\mspace{14mu}\max\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{of}\mspace{14mu}{the}\mspace{14mu}{UEs}\mspace{14mu}{belong}\mspace{14mu}{to}\mspace{14mu}{same}\mspace{14mu}{service}\mspace{14mu}{type}\mspace{14mu} s\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},{T = {{T_{\min,s}\mspace{14mu}\min\mspace{14mu}{\text{UE}\text{-specific}}\mspace{14mu}{DRX}\mspace{14mu}{of}\mspace{14mu}{the}\mspace{14mu}{UEs}\mspace{14mu}{belong}\mspace{14mu}{to}\mspace{14mu}{same}\mspace{14mu}{service}\mspace{14mu}{type}\mspace{14mu} s\mspace{14mu}{and}\mspace{14mu}{offset}} = 0}},\mspace{20mu}{{{or}\mspace{14mu} T} = {{T_{\min,s}\mspace{14mu}{and}\mspace{14mu}{offset}} = {{{LCM}\left( {M_{s},\frac{T_{\max,s}}{T_{\min,s}}} \right)}T_{\min,s}}}}$

with T_(max,s) and T_(min,s) to be indicated in SIB respectively orT_(max,s) and T_(min,s) to be predefined as the maximum and minimumvalue of the possible UE-specific DRX cycles respectively.

FIG. 7 is a diagram 700 illustrating transmission between a base stationand a UE. The diagram 700 includes a UE 702 and a base station 704. Insome aspects, the base station 704, at 706, may group one or more UEs ina UE group. The base station 704 may transmit, to one or more UEs in theUE group, an allocation of resources assigned to the one or more UEs inthe UE group. The allocation of resources may comprise a group WUSresource within a set of WUS resources associated with a PO. The set ofWUS resources may include a ungrouped WUS, where the location of thegroup WUS may be based on a frequency location of the ungrouped WUS. Insome aspects, the location of the group WUS resource may be based on atleast one of the ungrouped WUS having the frequency location in a firstresource block and a second resource block of a six resource blockbandwidth, the ungrouped WUS having the frequency location in a thirdresource block and a fourth resource block of the six resource blockbandwidth, or the ungrouped WUS having the frequency location in a fifthresource block and a sixth resource block of the six resource blockbandwidth. In some aspects, the set of WUS resources may not include anungrouped WUS. In such instances, the location of the group WUS resourcemay be based on information indicated in a configuration for the groupWUS. The set of WUS resources may be consecutive in time and frequency.In some aspects, the set of WUS resources may be non-consecutive in timeor frequency.

The UE 702, at 710, may determine a location of the group WUS resourcewithin a set of WUS resources. The set of WUS resources may beassociated with a paging occasion. In some aspects, the set of WUSresources may include an ungrouped WUS. The location of the group WUSresource may be determined based on a frequency location of theungrouped WUS.

The UE 702, at 712, may monitor for a group WUS at the determinedlocation in the allocation of resources.

FIG. 8 is a diagram 800 illustrating transmission between a base stationand a UE. The diagram 800 includes a UE 802 and a base station 804. Insome aspects, the base station 804, at 806, may configure an eDRXconfiguration. The eDRX configuration may include a number ofconsecutive POs associated with a group WUS. In some aspects, the eDRXconfiguration may include a configured number of consecutive POsassociated with an ungrouped WUS. The number of consecutive POsassociated with the group WUS may be based on the configured number ofconsecutive POs associated with the ungrouped WUS. In some aspects, theeDRX configuration may indicate the number of consecutive POs associatedfor the group WUS.

The base station 804, at 808, may transmit the eDRX configuration to atleast one UE. The eDRX configuration may configure the at least one UEfor eDRX mode.

The UE 802, after receiving the eDRX configuration, UE may determine, at810, a number of consecutive POs associated with a group WUS. In someaspects, the eDRX configuration may indicate the number of consecutivePOs associated for the group WUS.

The UE 802, at 812, may monitor for the group WUS while in eDRX modebased on the determined number of consecutive POs. In some aspects, theeDRX configuration may include a configured number of consecutive POsassociated with an ungrouped WUS. The UE may determine the number ofconsecutive POs associated with the group WUS based on the configurednumber of consecutive POs associated with the ungrouped WUS.

FIG. 9 is a diagram 900 illustrating transmission between a base stationand a UE. The diagram 900 includes a UE 902 and a base station 904. Insome aspects, the base station 904, at 906, may configure an allocationof resources for a group WUS associated with one or more UEs in a UEgroup. A first WUS resource of M WUS resources may be associated with afirst PO. A second WUS resource of M WUS resources may be associatedwith a second PO. In some aspects, a same WUS sequence may be allocatedfor the UE group to monitor any of the M WUS resources.

In some aspects, the base station 904, at 908, may apply a WUS sequenceto the M WUS resources associated with the respective one of the firstor second WUS resources. The WUS sequence may further include ascrambling sequence associated with the respective one of the first orsecond WUS resources.

The base station 904, at 910, may transmit the group WUS to the one ormore UEs in the UE group. In some aspects, the base station may transmitthe group WUS associated with the one or more UEs at different POs usinga pattern associated with a location of the M WUS resources.

The UE 902, at 912, may monitor for the WUS at a first WUS resource of MWUS resources for a first paging opportunity.

The UE 902, at 914, may monitor for the WUS at a second WUS resource ofM WUS resources for a second paging opportunity. In some aspects, the UEmay monitor for the WUS at different POs using a pattern associated witha location of the M WUS resources. The pattern associated with the M WUSresources may be determined at least based on a discontinuous receptioncycle indicated in system information. In some aspects, a same WUSsequence may be allocated for the UE group to monitor any of the M WUSresources.

In some aspects, the UE 902, at 916, may use a WUS sequence associatedwith the respective one of the first or second WUS resources. The WUSsequence may further include a scrambling sequence associated with therespective one of the first or second WUS resources.

FIG. 10 is a flowchart of a method 1000 of wireless communication. Themethod may be performed by a UE or a component of a UE (e.g., the UE104, 350, 702, 802, 902, which may include the memory 360 and which maybe the entire UE 350 or a component of the UE 350, such as the TXprocessor 368, the RX processor 356, and/or the controller/processor359). According to various aspects, one or more of the illustratedoperations of the method 1000 may be omitted, transposed, and/orcontemporaneously performed. The method may enable a UE to monitor for agroup WUS at a determined location within an allocation of resources.

At 1002, the UE may receive an allocation of resources assigned to oneor more UEs in a UE group. The allocation of resources may comprise agroup WUS resource. The UE may receive the allocation of resources froma base station.

At 1004, the UE may determine a location of the group WUS resourcewithin a set of WUS resources. The set of WUS resources may beassociated with a paging occasion. In some aspects, the set of WUSresources may include an ungrouped WUS. The location of the group WUSresource may be determined based on a frequency location of theungrouped WUS. In some aspects, the location of the group WUS resourceis determined based on the ungrouped WUS having the frequency locationin a first resource block and a second resource block of a six resourceblock bandwidth. In some aspects, the location of the group WUS resourcemay be determined based on the ungrouped WUS having the frequencylocation in a third resource block and a fourth resource block of thesix resource block bandwidth. In some aspects, the location of the groupWUS resource may be determined based on the ungrouped WUS having thefrequency location in a fifth resource block and a sixth resource blockof the six resource block bandwidth. In some aspects, the location ofthe group WUS resource may be determined based on at least one of theungrouped WUS having the frequency location in a first resource blockand a second resource block of a six resource block bandwidth, theungrouped WUS having the frequency location in a third resource blockand a fourth resource block of the six resource block bandwidth, or theungrouped WUS having the frequency location in a fifth resource blockand a sixth resource block of the six resource block bandwidth. In someaspects, the set of WUS resources may not include an ungrouped WUS, suchthat the location of the group WUS resource may be determined based oninformation indicated in a configuration for the group WUS. The set ofWUS resources may be consecutive in time and frequency, e.g., forexample, as shown in FIG. 4. In some aspects, the set of WUS resourcesmay be non-consecutive in time or frequency, e.g., for example, as shownin FIG. 5.

At 1006, the UE may monitor for a group WUS at the determined locationin the allocation of resources.

FIG. 11 is a diagram 1100 illustrating an example of a hardwareimplementation for an apparatus 1102. The apparatus 1102 is a UE andincludes a cellular baseband processor 1104 (also referred to as amodem) coupled to a cellular RF transceiver 1122 and one or moresubscriber identity modules (SIM) cards 1120, an application processor1106 coupled to a secure digital (SD) card 1108 and a screen 1110, aBluetooth module 1112, a wireless local area network (WLAN) module 1114,a Global Positioning System (GPS) module 1116, and a power supply 1118.The cellular baseband processor 1104 communicates through the cellularRF transceiver 1122 with the UE 104 and/or BS 102/180. The cellularbaseband processor 1104 may include a computer-readable medium/memory.The computer-readable medium/memory may be non-transitory. The cellularbaseband processor 1104 is responsible for general processing, includingthe execution of software stored on the computer-readable medium/memory.The software, when executed by the cellular baseband processor 1104,causes the cellular baseband processor 1104 to perform the variousfunctions described supra. The computer-readable medium/memory may alsobe used for storing data that is manipulated by the cellular basebandprocessor 1104 when executing software. The cellular baseband processor1104 further includes a reception component 1130, a communicationmanager 1132, and a transmission component 1134. The communicationmanager 1132 includes the one or more illustrated components. Thecomponents within the communication manager 1132 may be stored in thecomputer-readable medium/memory and/or configured as hardware within thecellular baseband processor 1104. The cellular baseband processor 1104may be a component of the UE 350 and may include the memory 360 and/orat least one of the TX processor 368, the RX processor 356, and thecontroller/processor 359. In one configuration, the apparatus 1102 maybe a modem chip and include just the baseband processor 1104, and inanother configuration, the apparatus 1102 may be the entire UE (e.g.,see 350 of FIG. 3) and include the aforementioned additional modules ofthe apparatus 1102.

The reception component 1130 is configured to receive, from a basestation (e.g., 102/180), an allocation of resources assigned to one ormore UEs in a UE group, in which the allocation of resources includes agroup WUS resource. The communication manager 1132 includes adetermination component 1140 that is configured to determine a locationof the group WUS resource within a set of WUS resources associated witha paging occasion, e.g., as described in connection with block 1004 ofthe method 1000 of FIG. 10. The communication manager 1132 furtherincludes a monitoring component 1142 that receives input in the form ofthe determined location from the determination component 1140 and isconfigured to monitor for a group WUS at the determined location in theallocation of resources, e.g., as described in connection with block1006 of the method 1000 of FIG. 10.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 10. Assuch, each block in the aforementioned flowcharts of FIG. 10 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 1102, and in particular the cellularbaseband processor 1104, includes means for receiving, from a basestation, an allocation of resources assigned to one or more UEs in a UEgroup, the allocation of resources comprising a group WUS resource;means for determining a location of the group WUS resource within a setof WUS resources associated with a paging occasion; and means formonitoring for a group WUS at the determined location in the allocationof resources. The aforementioned means may be one or more of theaforementioned components of the apparatus 1102 configured to performthe functions recited by the aforementioned means. As described supra,the apparatus 1102 may include the TX Processor 368, the RX Processor356, and the controller/processor 359. As such, in one configuration,the aforementioned means may be the TX Processor 368, the RX Processor356, and the controller/processor 359 configured to perform thefunctions recited by the aforementioned means.

FIG. 12 is a flowchart of a method 1200 of wireless communication. Themethod may be performed by a UE or a component of a UE (e.g., the UE104, 350, 702, 802, 902, which may include the memory 360 and which maybe the entire UE 350 or a component of the UE 350, such as the TXprocessor 368, the RX processor 356, and/or the controller/processor359). According to various aspects, one or more of the illustratedoperations of the method 1200 may be omitted, transposed, and/orcontemporaneously performed. The method may enable a UE to monitor for agroup WUS while in eDRX mode.

At 1202, the UE may receive an eDRX configuration. The eDRXconfiguration may configure the UE for eDRX mode. The UE may receive theeDRX configuration from the base station.

At 1204, the UE may determine a number of consecutive POs associatedwith a group WUS. In some aspects, the eDRX configuration may indicatethe number of consecutive POs associated for the group WUS.

At 1206, the UE may monitor for the group WUS while in eDRX mode basedon the determined number of consecutive POs. In some aspects, the eDRXconfiguration may include a configured number of consecutive POsassociated with an ungrouped WUS. The UE may determine the number ofconsecutive POs associated with the group WUS based on the configurednumber of consecutive POs associated with the ungrouped WUS.

FIG. 13 is a diagram 1300 illustrating an example of a hardwareimplementation for an apparatus 1302. The apparatus 1302 is a UE andincludes a cellular baseband processor 1304 (also referred to as amodem) coupled to a cellular RF transceiver 1322 and one or moresubscriber identity modules (SIM) cards 1320, an application processor1306 coupled to a secure digital (SD) card 1308 and a screen 1310, aBluetooth module 1312, a wireless local area network (WLAN) module 1314,a Global Positioning System (GPS) module 1316, and a power supply 1318.The cellular baseband processor 1304 communicates through the cellularRF transceiver 1322 with the UE 104 and/or BS 102/180. The cellularbaseband processor 1304 may include a computer-readable medium/memory.The computer-readable medium/memory may be non-transitory. The cellularbaseband processor 1304 is responsible for general processing, includingthe execution of software stored on the computer-readable medium/memory.The software, when executed by the cellular baseband processor 1304,causes the cellular baseband processor 1304 to perform the variousfunctions described supra. The computer-readable medium/memory may alsobe used for storing data that is manipulated by the cellular basebandprocessor 1304 when executing software. The cellular baseband processor1304 further includes a reception component 1330, a communicationmanager 1332, and a transmission component 1334. The communicationmanager 1332 includes the one or more illustrated components. Thecomponents within the communication manager 1332 may be stored in thecomputer-readable medium/memory and/or configured as hardware within thecellular baseband processor 1304. The cellular baseband processor 1304may be a component of the UE 350 and may include the memory 360 and/orat least one of the TX processor 368, the RX processor 356, and thecontroller/processor 359. In one configuration, the apparatus 1302 maybe a modem chip and include just the baseband processor 1304, and inanother configuration, the apparatus 1302 may be the entire UE (e.g.,see 350 of FIG. 3) and include the aforementioned additional modules ofthe apparatus 1302.

The reception component 1330 is configured to receive, from a basestation (e.g., 102/180), an eDRX configuration that configures the UEfor an eDRX mode, e.g., as described in connection with block 1202 ofthe method 1200 of FIG. 12. The communication manager 1332 includes adetermination component 1340 that is configured to determine a number ofconsecutive POs associated with a group WUS, e.g., as described inconnection with block 1204 of the method 1200 of FIG. 12. Thecommunication manager 1332 further includes a monitoring component 1342that receives input in the form of the number of consecutive POs fromthe determination component 1340 and is configured to monitor for thegroup WUS, while in the eDRX mode based on the number of consecutivePOs, e.g., as described in connection with block 1206 of the method 1200of FIG. 12.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 12. Assuch, each block in the aforementioned flowchart of FIG. 12 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 1302, and in particular the cellularbaseband processor 1304, includes means for receiving, from a basestation, an eDRX configuration that configures the UE for an eDRX mode;means for determining a number of consecutive POs associated with agroup WUS; and means for monitoring for the group WUS, while in the eDRXmode based on the number of consecutive POs. The aforementioned meansmay be one or more of the aforementioned components of the apparatus1302 configured to perform the functions recited by the aforementionedmeans. As described supra, the apparatus 1302 may include the TXProcessor 368, the RX Processor 356, and the controller/processor 359.As such, in one configuration, the aforementioned means may be the TXProcessor 368, the RX Processor 356, and the controller/processor 359configured to perform the functions recited by the aforementioned means.

FIG. 14 is a flowchart of a method 1400 of wireless communication. Themethod may be performed by a UE or a component of a UE (e.g., the UE104, 350, 702, 802, 902, which may include the memory 360 and which maybe the entire UE 350 or a component of the UE 350, such as the TXprocessor 368, the RX processor 356, and/or the controller/processor359). According to various aspects, one or more of the illustratedoperations of the method 1400 may be omitted, transposed, and/orcontemporaneously performed. The method may enable a UE to monitor for aWUS at a WUS resource.

At 1402, the UE may receive an allocation of resources for a group WUSassociated with one or more UEs in a UE group, where the UE may bewithin the UE group. The UE may receive the allocation of resources forthe group WUS from the base station.

At 1404, the UE may monitor for the WUS at a first WUS resource of M WUSresources for a first paging opportunity.

At 1406, the UE may monitor for the WUS at a second WUS resource of MWUS resources for a second paging opportunity. In some aspects, the UEmay monitor for the WUS at different POs using a pattern associated witha location of the M WUS resources. The pattern associated with the M WUSresources may be determined at least based on a discontinuous receptioncycle indicated in system information. In some aspects, a same WUSsequence may be allocated for the UE group to monitor any of the M WUSresources.

In some aspects, for example at 1408, the UE may use a WUS sequenceassociated with the respective one of the first WUS resource or thesecond WUS resource. The WUS sequence may further include a scramblingsequence associated with the respective one of the first WUS resource orthe second WUS resource. The scrambling sequence may be based on thefirst WUS resource or the second WUS resource that is used for the WUS.The WUS sequence may further include a phase shift. The phase shift maybe based on the UE group. In some aspects, the phase shift may be thesame if the first WUS resource or the second WUS resource is used forthe WUS.

In some aspects, for example, at 1410, the UE may monitor for a commonWUS sequence. The common WUS sequence may be based on the first WUSresource or the second WUS resource that is used to monitor for the WUS.

In some aspects, the one or more UEs in the UE group may be configuredto alternate between the first WUS resource and M−1 WUS resources. Theone or more UEs in the UE group may alternate between the first WUSresource and M−1 WUS resources if the first WUS resource is allocatedfor the group WUS. In some aspects, the one or more UEs in the UE groupmay be configured to alternate between the second WUS resource and M WUSresources when the first WUS resource is not allocated for the groupWUS. In yet some aspects, the one or more UEs in the UE group may beconfigured to determine whether to alternate between WUS resources basedon an amount of the M WUS resources.

FIG. 15 is a diagram 1500 illustrating an example of a hardwareimplementation for an apparatus 1502. The apparatus 1502 is a UE andincludes a cellular baseband processor 1504 (also referred to as amodem) coupled to a cellular RF transceiver 1522 and one or moresubscriber identity modules (SIM) cards 1520, an application processor1506 coupled to a secure digital (SD) card 1508 and a screen 1510, aBluetooth module 1512, a wireless local area network (WLAN) module 1514,a Global Positioning System (GPS) module 1516, and a power supply 1518.The cellular baseband processor 1504 communicates through the cellularRF transceiver 1522 with the UE 104 and/or BS 102/180. The cellularbaseband processor 1504 may include a computer-readable medium/memory.The computer-readable medium/memory may be non-transitory. The cellularbaseband processor 1504 is responsible for general processing, includingthe execution of software stored on the computer-readable medium/memory.The software, when executed by the cellular baseband processor 1504,causes the cellular baseband processor 1504 to perform the variousfunctions described supra. The computer-readable medium/memory may alsobe used for storing data that is manipulated by the cellular basebandprocessor 1504 when executing software. The cellular baseband processor1504 further includes a reception component 1530, a communicationmanager 1532, and a transmission component 1534. The communicationmanager 1532 includes the one or more illustrated components. Thecomponents within the communication manager 1532 may be stored in thecomputer-readable medium/memory and/or configured as hardware within thecellular baseband processor 1504. The cellular baseband processor 1504may be a component of the UE 350 and may include the memory 360 and/orat least one of the TX processor 368, the RX processor 356, and thecontroller/processor 359. In one configuration, the apparatus 1502 maybe a modem chip and include just the baseband processor 1504, and inanother configuration, the apparatus 1502 may be the entire UE (e.g.,see 350 of FIG. 3) and include the aforementioned additional modules ofthe apparatus 1502.

The reception component 1530 is configured to receive, from a basestation (e.g., 102/180), an allocation of resources for a group WUSassociated with one or more UEs in a UE group, e.g., as described inconnection with block 1402 of the method 1400 of FIG. 14. Thecommunication manager 1532 includes a monitoring component 1542 thatreceives input in the form of the allocation of resources from thereception component 1530 and is configured to monitor for the group WUSat a first WUS resource of M WUS resources for a first PO, e.g., asdescribed in connection with block 1404 of the method 1400 of FIG. 14.The monitoring component 1542 is further configured to monitor for thegroup WUS at a second WUS resource of M WUS resources for a second PO,e.g., as described in connection with block 1406 of the method 1400 ofFIG. 14. The communication manager 1532 further includes a utilizationcomponent 1542 that is configured to use a WUS sequence associated withthe respective one of the first or second WUS resources, e.g., asdescribed in connection with block 1408 of the method 1400 of FIG. 14.The monitoring component 1542 is further configured to monitor for acommon WUS sequence, in which the common WUS sequence based on the firstWUS resource or the second WUS resource that is used to monitor for theWUS, e.g., as described in connection with block 1410 of the method 1400of FIG. 14.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 14. Assuch, each block in the aforementioned flowchart of FIG. 14 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 1502, and in particular the cellularbaseband processor 1504, includes means for receiving, from a basestation, an allocation of resources for a group WUS associated with oneor more UEs in a UE group, in which the UE is within the UE group; meansfor monitoring for the group WUS at a first WUS resource of M WUSresources for a first PO; means for monitoring for the group WUS at asecond WUS resource of M WUS resources for a second PO; means for usinga WUS sequence associated with the respective one of the first or secondWUS resources; and means for monitoring for a common WUS sequence, inwhich the common WUS sequence based on the first WUS resource or thesecond WUS resource that is used to monitor for the WUS. Theaforementioned means may be one or more of the aforementioned componentsof the apparatus 1502 configured to perform the functions recited by theaforementioned means. As described supra, the apparatus 1502 may includethe TX Processor 368, the RX Processor 356, and the controller/processor359. As such, in one configuration, the aforementioned means may be theTX Processor 368, the RX Processor 356, and the controller/processor 359configured to perform the functions recited by the aforementioned means.

FIG. 16 is a flowchart of a method 1600 of wireless communication. Themethod may be performed by a base station or a component of a basestation (e.g., the base station 102, 108, 310, 704, 804, 904, which mayinclude the memory 376 and which may be the entire base station 310 or acomponent of the base station 310, such as the TX processor 316, the RXprocessor 370, and/or the controller/processor 375). According tovarious aspects, one or more of the illustrated operations of the method1600 may be omitted, transposed, and/or contemporaneously performed. Themethod may enable a base station to transmit a WUS.

At 1602, the base station may group one or more UEs in a UE group.

At 1604, the base station may transmit an allocation of resources to oneor more UEs in the UE group. The allocation of resources may be assignedto the one or more UEs in the UE group. The allocation of resources maycomprise a group WUS resource within a set of WUS resources associatedwith a paging occasion. In some aspects, the set of WUS resources mayinclude an ungrouped WUS. A location of the group WUS may be based on afrequency location of the ungrouped WUS. In some aspects, the locationof the group WUS resource may be based on the ungrouped WUS having afrequency location in a first resource block and a second resource blockof a six resource block bandwidth, e.g., as shown in Pattern 1 of FIG. 4or Patterns 4 and 6 of FIG. 5. In some aspects, the location of thegroup WUS resource may be based on the ungrouped WUS having thefrequency location in a third resource block and a fourth resource blockof the six resource block bandwidth, e.g., as shown in Patterns 2-1 and2-2 of FIG. 4 or Patterns 8 and 9 of FIG. 5. In some aspects, thelocation of the group WUS resource may be based on the ungrouped WUShaving the frequency location in a fifth resource block and a sixthresource block of the six resource block bandwidth, e.g., as shown inPattern 3 of FIG. 4 or Patterns 5 and 7 of FIG. 5. In some aspects, thelocation of the group WUS resource may be based on at least one of theungrouped WUS having the frequency location in a first resource blockand a second resource block of a six resource block bandwidth, theungrouped WUS having the frequency location in a third resource blockand a fourth resource block of the six resource block bandwidth, or theungrouped WUS having the frequency location in a fifth resource blockand a sixth resource block of the six resource block bandwidth. In someaspects, the set of WUS resources may not include an ungrouped WUS. Insuch instances, the location of the group WUS resource may be based oninformation indicated in a configuration for the group WUS. The set ofWUS resources may be consecutive in time and frequency. In some aspects,the set of WUS resources may be non-consecutive in time or frequency.

FIG. 17 is a diagram 1700 illustrating an example of a hardwareimplementation for an apparatus 1702. The apparatus 1702 is a BS andincludes a baseband unit 1704. The baseband unit 1704 may communicatethrough a cellular RF transceiver with the UE 104. The baseband unit1704 may include a computer-readable medium/memory. The baseband unit1704 is responsible for general processing, including the execution ofsoftware stored on the computer-readable medium/memory. The software,when executed by the baseband unit 1704, causes the baseband unit 1704to perform the various functions described supra. The computer-readablemedium/memory may also be used for storing data that is manipulated bythe baseband unit 1704 when executing software. The baseband unit 1704further includes a reception component 1730, a communication manager1732, and a transmission component 1734. The communication manager 1732includes the one or more illustrated components. The components withinthe communication manager 1732 may be stored in the computer-readablemedium/memory and/or configured as hardware within the baseband unit1704. The baseband unit 1704 may be a component of the BS 310 and mayinclude the memory 376 and/or at least one of the TX processor 316, theRX processor 370, and the controller/processor 375.

The communication manager 1732 includes a grouping component 1740 thatis configured to group one or more UEs in a UE group, e.g., as describedin connection with block 1602 of the method 1600 of FIG. 16. Thetransmission component 1534 is configured to transmit to one or more UEsin the UE group, an allocation of resources assigned to the one or moreUEs in the UE group, e.g., as described in connection with block 1604 ofthe method 1600 of FIG. 16.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 16. Assuch, each block in the aforementioned flowchart of FIG. 16 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 1702, and in particular the basebandunit 1704, includes means for grouping one or more UEs in a UE group;and means for transmitting, to one or more UEs in the UE group, anallocation of resources assigned to the one or more UEs in the UE group,in which the allocation of resources includes a group WUS resourcewithin a set of WUS resources associated with a paging occasion. Theaforementioned means may be one or more of the aforementioned componentsof the apparatus 1702 configured to perform the functions recited by theaforementioned means. As described supra, the apparatus 1702 may includethe TX Processor 316, the RX Processor 370, and the controller/processor375. As such, in one configuration, the aforementioned means may be theTX Processor 316, the RX Processor 370, and the controller/processor 375configured to perform the functions recited by the aforementioned means.

FIG. 18 is a flowchart of a method 1800 of wireless communication. Themethod may be performed by a base station or a component of a basestation (e.g., the base station 102, 108, 310, 704, 804, 904, which mayinclude the memory 376 and which may be the entire base station 310 or acomponent of the base station 310, such as the TX processor 316, the RXprocessor 370, and/or the controller/processor 375). According tovarious aspects, one or more of the illustrated operations of the method1800 may be omitted, transposed, and/or contemporaneously performed. Themethod may enable a base station to transmitting an eDRX configurationto a UE.

At 1802, the base station may configure an eDRX configuration. The eDRXconfiguration may include a number of consecutive POs associated with agroup WUS. In some aspects, the eDRX configuration may include aconfigured number of consecutive POs associated with an ungrouped WUS.The number of consecutive POs associated with the group WUS may be basedon the configured number of consecutive POs associated with theungrouped WUS. In some aspects, the eDRX configuration may indicate thenumber of consecutive POs associated for the group WUS.

At 1804, the base station may transmit the eDRX configuration to atleast one UE. The eDRX configuration may configure the at least one UEfor eDRX mode.

FIG. 19 is a diagram 1900 illustrating an example of a hardwareimplementation for an apparatus 1902. The apparatus 1902 is a BS andincludes a baseband unit 1904. The baseband unit 1904 may communicatethrough a cellular RF transceiver with the UE 104. The baseband unit1904 may include a computer-readable medium/memory. The baseband unit1904 is responsible for general processing, including the execution ofsoftware stored on the computer-readable medium/memory. The software,when executed by the baseband unit 1904, causes the baseband unit 1904to perform the various functions described supra. The computer-readablemedium/memory may also be used for storing data that is manipulated bythe baseband unit 1904 when executing software. The baseband unit 1904further includes a reception component 1930, a communication manager1932, and a transmission component 1934. The communication manager 1932includes the one or more illustrated components. The components withinthe communication manager 1932 may be stored in the computer-readablemedium/memory and/or configured as hardware within the baseband unit1904. The baseband unit 1904 may be a component of the BS 310 and mayinclude the memory 376 and/or at least one of the TX processor 316, theRX processor 370, and the controller/processor 375.

The communication manager 1932 includes a configuration component 1940that is configured to configure an eDRX configuration, in which the eDRXconfiguration includes a number of consecutive POs associated with agroup WUS, e.g., as described in connection with block 1802 of themethod 1800 of FIG. 18. The transmission component 1534 is configured totransmit the eDRX configuration to at least one UE, e.g., as describedin connection with block 1804 of the method 1800 of FIG. 18.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 17. Assuch, each block in the aforementioned flowchart of FIG. 17 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 1902, and in particular the basebandunit 1904, includes means for configuring an eDRX configuration; andmeans for transmitting, to at least one UE, the eDRX configuration toconfigure the at least one UE for eDRX mode. The aforementioned meansmay be one or more of the aforementioned components of the apparatus1902 configured to perform the functions recited by the aforementionedmeans. As described supra, the apparatus 1902 may include the TXProcessor 316, the RX Processor 370, and the controller/processor 375.As such, in one configuration, the aforementioned means may be the TXProcessor 316, the RX Processor 370, and the controller/processor 375configured to perform the functions recited by the aforementioned means.

FIG. 20 is a flowchart of a method 2000 of wireless communication. Themethod may be performed by a base station or a component of a basestation (e.g., the base station 102, 108, 310, 704, 804, 904, which mayinclude the memory 376 and which may be the entire base station 310 or acomponent of the base station 310, such as the TX processor 316, the RXprocessor 370, and/or the controller/processor 375). According tovarious aspects, one or more of the illustrated operations of the method2000 may be omitted, transposed, and/or contemporaneously performed. Themethod may enable a base station to transmit a group WUS to one or moreUEs in a UE group.

At 2002, the base station may configure an allocation of resources for agroup WUS associated with one or more UEs in a UE group. A first WUSresource of M WUS resources may be associated with a first PO. A secondWUS resource of M WUS resources may be associated with a second PO. Insome aspects, a same WUS sequence may be allocated for the UE group tomonitor any of the M WUS resources.

At 2004, the base station may transmit the group WUS to the one or moreUEs in the UE group. In some aspects, the base station may transmit thegroup WUS associated with the one or more UEs at different POs using apattern associated with a location of the M WUS resources.

In some aspects, for example at 2006, the base station may apply a WUSsequence to the M WUS resources associated with the respective one ofthe first or second WUS resources. The WUS sequence may further includea scrambling sequence associated with the respective one of the first orsecond WUS resources.

FIG. 21 is a diagram 2100 illustrating an example of a hardwareimplementation for an apparatus 2102. The apparatus 2102 is a BS andincludes a baseband unit 2104. The baseband unit 2104 may communicatethrough a cellular RF transceiver with the UE 104. The baseband unit2104 may include a computer-readable medium/memory. The baseband unit2104 is responsible for general processing, including the execution ofsoftware stored on the computer-readable medium/memory. The software,when executed by the baseband unit 2104, causes the baseband unit 2104to perform the various functions described supra. The computer-readablemedium/memory may also be used for storing data that is manipulated bythe baseband unit 2104 when executing software. The baseband unit 2104further includes a reception component 2130, a communication manager2132, and a transmission component 2134. The communication manager 2132includes the one or more illustrated components. The components withinthe communication manager 2132 may be stored in the computer-readablemedium/memory and/or configured as hardware within the baseband unit2104. The baseband unit 2104 may be a component of the BS 310 and mayinclude the memory 376 and/or at least one of the TX processor 316, theRX processor 370, and the controller/processor 375.

The communication manager 2132 includes a configuration component 2140that is configured to configure an allocation of resources for a groupWUS associated with one or more UEs in a UE group, e.g., as described inconnection with block 2002 of the method 2000 of FIG. 20. Thetransmission component 2134 is configured to transmit the group WUS tothe one or more UEs in the UE group, e.g., as described in connectionwith block 2004 of the method 2000 of FIG. 20. The communication manager2132 further includes an application component 2142 that is configuredto apply a WUS sequence to the M WUS resources associated with therespective one of the first or second WUS resources, e.g., as describedin connection with block 2006 of the method 2000 of FIG. 20.

The apparatus may include additional components that perform each of theblocks of the algorithm in the aforementioned flowchart of FIG. 20. Assuch, each block in the aforementioned flowchart of FIG. 20 may beperformed by a component and the apparatus may include one or more ofthose components. The components may be one or more hardware componentsspecifically configured to carry out the stated processes/algorithm,implemented by a processor configured to perform the statedprocesses/algorithm, stored within a computer-readable medium forimplementation by a processor, or some combination thereof.

In one configuration, the apparatus 2102, and in particular the basebandunit 2104, includes means for configuring an allocation of resources fora group WUS associated with one or more UEs in a UE group; means fortransmitting the group WUS to the one or more UEs in the UE group; andmeans for applying a WUS sequence to the M WUS resources associated withthe respective one of the first or second WUS resources. Theaforementioned means may be one or more of the aforementioned componentsof the apparatus 2102 configured to perform the functions recited by theaforementioned means. As described supra, the apparatus 2102 may includethe TX Processor 316, the RX Processor 370, and the controller/processor375. As such, in one configuration, the aforementioned means may be theTX Processor 316, the RX Processor 370, and the controller/processor 375configured to perform the functions recited by the aforementioned means.

It is understood that the specific order or hierarchy of blocks in theprocesses/flowcharts disclosed is an illustration of example approaches.Based upon design preferences, it is understood that the specific orderor hierarchy of blocks in the processes/flowcharts may be rearranged.Further, some blocks may be combined or omitted. The accompanying methodclaims present elements of the various blocks in a sample order, and arenot meant to be limited to the specific order or hierarchy presented.

The previous description is provided to enable any person skilled in theart to practice the various aspects described herein. Variousmodifications to these aspects will be readily apparent to those skilledin the art, and the generic principles defined herein may be applied toother aspects. Thus, the claims are not intended to be limited to theaspects shown herein, but is to be accorded the full scope consistentwith the language claims, wherein reference to an element in thesingular is not intended to mean “one and only one” unless specificallyso stated, but rather “one or more.” The word “exemplary” is used hereinto mean “serving as an example, instance, or illustration.” Any aspectdescribed herein as “exemplary” is not necessarily to be construed aspreferred or advantageous over other aspects. Unless specifically statedotherwise, the term “some” refers to one or more. Combinations such as“at least one of A, B, or C,” “one or more of A, B, or C,” “at least oneof A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or anycombination thereof” include any combination of A, B, and/or C, and mayinclude multiples of A, multiples of B, or multiples of C. Specifically,combinations such as “at least one of A, B, or C,” “one or more of A, B,or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and“A, B, C, or any combination thereof” may be A only, B only, C only, Aand B, A and C, B and C, or A and B and C, where any such combinationsmay contain one or more member or members of A, B, or C. All structuraland functional equivalents to the elements of the various aspectsdescribed throughout this disclosure that are known or later come to beknown to those of ordinary skill in the art are expressly incorporatedherein by reference and are intended to be encompassed by the claims.

Moreover, nothing disclosed herein is intended to be dedicated to thepublic regardless of whether such disclosure is explicitly recited inthe claims. The words “module,” “mechanism,” “element,” “device,” andthe like may not be a substitute for the word “means.” As such, no claimelement is to be construed as a means plus function unless the elementis expressly recited using the phrase “means for.”

What is claimed is:
 1. A method of wireless communication at a userequipment (UE), comprising: receiving, from a base station, a resourceallocation for a group wake-up signal (WUS) associated with one or moreUEs in a UE group, wherein the UE is within the UE group; monitoring forthe group WUS at a first WUS resource of M WUS resources associated witha first paging opportunity (PO); and monitoring for the group WUS at asecond WUS resource of M WUS resources associated with a second PO. 2.The method of claim 1, wherein the one or more UEs in the UE groupbelong to a same service type.
 3. The method of claim 1, wherein themonitoring comprises monitoring for the group WUS at different systemframe numbers (SFNs) or POs using a WUS group alternation patternassociated with the M WUS resources.
 4. The method of claim 3, whereinthe pattern associated with the M WUS resources includes alternating UEgroups that belong to a same WUS resource.
 5. The method of claim 3,wherein the pattern associated with the M WUS resources includesalternating UE groups of a minimum number of UE groups for each WUSresource of the M WUS resources.
 6. The method of claim 3, wherein thepattern associated with the M WUS resources is configured based onwhether the first WUS resource is allocated for the group WUS and thefirst WUS resource includes a common WUS resources that corresponds toan ungrouped WUS sequence.
 7. The method of claim 3, wherein the patternassociated with the M WUS resources is configured based on whether theUE group is based on a paging probability of different service types. 8.The method of claim 3, wherein the pattern associated with the M WUSresources is determined at least based on a discontinuous reception(DRX) cycle indicated in system information or is predefined.
 9. Themethod of claim 8, wherein the DRX cycle is a cell-specific DRX cycle.10. The method of claim 8, wherein the DRX cycle is configured based onvalues of UE-specific DRX cycle.
 11. The method of claim 1, furthercomprising: receiving a WUS sequence associated with a respective one ofthe first WUS resource or the second WUS resource.
 12. The method ofclaim 11, wherein the WUS sequence includes a scrambling sequenceassociated with the respective one of the first WUS resource or thesecond WUS resource.
 13. The method of claim 12, wherein the scramblingsequence changes for different WUS resources by using differentinitialization seeds.
 14. The method of claim 12, wherein the WUSsequence further includes a phase shift that is based on the UE group.15. The method of claim 14, wherein the phase shift is the same if thefirst WUS resource or the second WUS resource is used for the group WUS.16. The method of claim 12, further comprising: monitoring for a commonWUS sequence that is based on the first WUS resource or the second WUSresource.
 17. The method of claim 11, wherein the monitoring comprisesmonitoring for the group WUS using a scrambling sequence that changesbetween the first WUS resource and the second WUS resource.
 18. Themethod of claim 1, wherein the one or more UEs in the UE group areconfigured to alternate between the first WUS resource and M−1 WUSresources if the first WUS resource is allocated for the group WUS. 19.The method of claim 1, wherein the one or more UEs in the UE group areconfigured to alternate between the second WUS resource and M WUSresources if the first WUS resource is not allocated for the group WUS.20. The method of claim 1, wherein the one or more UEs in the UE groupare configured to determine whether to alternate between WUS resourcesbased on an amount of the M WUS resources.
 21. The method of claim 1,wherein a same WUS sequence is allocated for the UE group to monitor anyof the M WUS resources.
 22. An apparatus for wireless communication at auser equipment (UE), the apparatus comprising: means for receiving, froma base station, a resource allocation for a group wake-up signal (WUS)associated with one or more UEs in a UE group, wherein the UE is withinthe UE group; means for monitoring for the group WUS at a first WUSresource of M WUS resources associated with a first paging opportunity(PO); and means for monitoring for the group WUS at a second WUSresource of M WUS resources associated with a second PO.
 23. Theapparatus of claim 22, wherein the one or more UEs in the UE groupbelong to a same service type.
 24. The apparatus of claim 22, whereinthe means for monitoring is further configured to monitor for the groupWUS at different system frame numbers (SFNs) or POs using a WUS groupalternation pattern associated with the M WUS resources.
 25. Theapparatus of claim 22, further comprising: means for receiving a WUSsequence associated with a respective one of the first WUS resource orthe second WUS resource.
 26. An apparatus for wireless communication ata user equipment (UE), the apparatus comprising: a transceiver; at leastone processor; and a memory, coupled to the transceiver and the at leastone processor, storing instructions thereon, which when executed by theat least one processor, cause the apparatus to: receive, from a basestation, via the transceiver, a resource allocation for a group wake-upsignal (WUS) associated with one or more UEs in a UE group, wherein theUE is within the UE group; monitor for the group WUS at a first WUSresource of M WUS resources associated with a first paging opportunity(PO); and monitor for the group WUS at a second WUS resource of M WUSresources associated with a second PO.
 27. The apparatus of claim 26,wherein the one or more UEs in the UE group belong to a same servicetype.
 28. The apparatus of claim 26, wherein the instructions, whichwhen executed by the at least one processor, further causes theapparatus to monitor for the group WUS at different system frame numbers(SFNs) or POs using a WUS group alternation pattern associated with theM WUS resources.
 29. A non-transitory computer-readable medium storingcomputer executable code for wireless communication at a user equipment(UE), the code, which when executed by at least one processor, causesthe UE to: receive, from a base station, a resource allocation for agroup wake-up signal (WUS) associated with one or more UEs in a UEgroup, wherein the UE is within the UE group; monitor for the group WUSat a first WUS resource of M WUS resources associated with a firstpaging opportunity (PO); and monitor for the group WUS at a second WUSresource of M WUS resources associated with a second PO.
 30. Thenon-transitory computer-readable medium of claim 29, wherein the code,which when executed by at least one processor, further causes the UE to:receive a WUS sequence associated with a respective one of the first WUSresource or the second WUS resource.